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30237200552 = 231317192931039
BaseRepresentation
bin11100001010010001…
…110001000010101000
32220001021121221100202
4130022101301002220
5443411210404202
621520224051332
72120206651436
oct341221610250
986037557322
1030237200552
1111907125349
125a3a463b48
132b0b575960
14166bb51d56
15bbe880802
hex70a4710a8

30237200552 has 128 divisors (see below), whose sum is σ = 70398720000. Its totient is φ = 12013940736.

The previous prime is 30237200537. The next prime is 30237200561. The reversal of 30237200552 is 25500273203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 958649 + ... + 989687.

It is an arithmetic number, because the mean of its divisors is an integer number (549990000).

Almost surely, 230237200552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30237200552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35199360000).

30237200552 is an abundant number, since it is smaller than the sum of its proper divisors (40161519448).

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

30237200552 is a wasteful number, since it uses less digits than its factorization.

30237200552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31123 (or 31119 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 29.

Adding to 30237200552 its reverse (25500273203), we get a palindrome (55737473755).

The spelling of 30237200552 in words is "thirty billion, two hundred thirty-seven million, two hundred thousand, five hundred fifty-two".

Divisors: 1 2 4 8 13 17 19 26 29 34 38 52 58 68 76 104 116 136 152 221 232 247 323 377 442 493 494 551 646 754 884 986 988 1102 1292 1508 1768 1972 1976 2204 2584 3016 3944 4199 4408 6409 7163 8398 9367 12818 14326 16796 18734 25636 28652 31039 33592 37468 51272 57304 62078 74936 121771 124156 243542 248312 403507 487084 527663 589741 807014 900131 974168 1055326 1179482 1614028 1800262 2110652 2358964 3228056 3600524 4221304 4717928 6859619 7201048 7666633 10025597 11701703 13719238 15302227 15333266 17102489 20051194 23403406 27438476 30604454 30666532 34204978 40102388 46806812 54876952 61208908 61333064 68409956 80204776 93613624 122417816 130332761 136819912 198928951 222332357 260665522 290742313 397857902 444664714 521331044 581484626 795715804 889329428 1042662088 1162969252 1591431608 1778658856 2325938504 3779650069 7559300138 15118600276 30237200552