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13444500454 = 2711223345067
BaseRepresentation
bin11001000010101101…
…01100101111100110
31021200222012101110021
430201112230233212
5210013243003304
610102030145354
7654111240220
oct144126545746
937628171407
1013444500454
11577a085200
12273265225a
1313634c4418
149177d5410
1553a4a5a54
hex3215acbe6

13444500454 has 48 divisors (see below), whose sum is σ = 26434969344. Its totient is φ = 5010358320.

The previous prime is 13444500437. The next prime is 13444500463. The reversal of 13444500454 is 45400544431.

It is a super-2 number, since 2×134445004542 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133572 + ... + 211495.

It is an arithmetic number, because the mean of its divisors is an integer number (550728528).

Almost surely, 213444500454 is an apocalyptic number.

13444500454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13444500454 is a deficient number, since it is larger than the sum of its proper divisors (12990468890).

13444500454 is a wasteful number, since it uses less digits than its factorization.

13444500454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345121 (or 345110 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

The spelling of 13444500454 in words is "thirteen billion, four hundred forty-four million, five hundred thousand, four hundred fifty-four".

Divisors: 1 2 7 11 14 22 23 46 77 121 154 161 242 253 322 506 847 1694 1771 2783 3542 5566 19481 38962 345067 690134 2415469 3795737 4830938 7591474 7936541 15873082 26570159 41753107 53140318 55555787 83506214 87301951 111111574 174603902 292271749 584543498 611113657 960321461 1222227314 1920642922 6722250227 13444500454