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22496400144 = 24322924312
BaseRepresentation
bin10100111100111000…
…111101001100010000
32011001210221112110100
4110330320331030100
5332033034301034
614200143532400
71424324150301
oct247470751420
964053845410
1022496400144
1195a46a4439
124439bba100
13217694669a
141135a7a7a8
158b9ed5099
hex53ce3d310

22496400144 has 135 divisors (see below), whose sum is σ = 65356163509. Its totient is φ = 7223422080.

The previous prime is 22496400139. The next prime is 22496400151. The reversal of 22496400144 is 44100469422.

It is a happy number.

The square root of 22496400144 is 149988.

It is a perfect power (a square), and thus also a powerful number.

22496400144 is a `hidden beast` number, since 2 + 2 + 4 + 9 + 640 + 0 + 1 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11796566544 + 10699833600 = 108612^2 + 103440^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22496400099 and 22496400108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 52195609 + ... + 52196039.

Almost surely, 222496400144 is an apocalyptic number.

22496400144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

22496400144 is the 149988-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22496400144

22496400144 is an abundant number, since it is smaller than the sum of its proper divisors (42859763365).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22496400144 is an equidigital number, since it uses as much as digits as its factorization.

22496400144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

Multiplying 22496400144 by its sum of digits (36), we get a square (809870405184 = 8999282).

22496400144 divided by its sum of digits (36) gives a square (624900004 = 249982).

Adding to 22496400144 its reverse (44100469422), we get a palindrome (66596869566).

The spelling of 22496400144 in words is "twenty-two billion, four hundred ninety-six million, four hundred thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 29 36 48 58 72 87 116 144 174 232 261 348 431 464 522 696 841 862 1044 1293 1392 1682 1724 2088 2523 2586 3364 3448 3879 4176 5046 5172 6728 6896 7569 7758 10092 10344 12499 13456 15138 15516 20184 20688 24998 30276 31032 37497 40368 49996 60552 62064 74994 99992 112491 121104 149988 185761 199984 224982 299976 362471 371522 449964 557283 599952 724942 743044 899928 1087413 1114566 1449884 1486088 1671849 1799856 2174826 2229132 2899768 2972176 3262239 3343698 4349652 4458264 5387069 5799536 6524478 6687396 8699304 8916528 10774138 13048956 13374792 16161207 17398608 21548276 26097912 26749584 32322414 43096552 48483621 52195824 64644828 86193104 96967242 129289656 156225001 193934484 258579312 312450002 387868968 468675003 624900004 775737936 937350006 1249800008 1406025009 1874700012 2499600016 2812050018 3749400024 5624100036 7498800048 11248200072 22496400144