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157028051684 = 22725315116293
BaseRepresentation
bin1001001000111110011…
…0011110101011100100
3120000022112222112100002
42102033212132223210
510033043140123214
6200045424040432
714226205262600
oct2221746365344
9500275875302
10157028051684
1160660272429
1226524463118
1311a6662761a
147858d30500
154140ada1de
hex248f99eae4

157028051684 has 36 divisors (see below), whose sum is σ = 325695670524. Its totient is φ = 66027963456.

The previous prime is 157028051683. The next prime is 157028051707. The reversal of 157028051684 is 486150820751.

It can be written as a sum of positive squares in 2 ways, for example, as 110574870784 + 46453180900 = 332528^2 + 215530^2 .

It is not an unprimeable number, because it can be changed into a prime (157028051683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7547759 + ... + 7568534.

It is an arithmetic number, because the mean of its divisors is an integer number (9047101959).

Almost surely, 2157028051684 is an apocalyptic number.

157028051684 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

157028051684 is an abundant number, since it is smaller than the sum of its proper divisors (168667618840).

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

157028051684 is a wasteful number, since it uses less digits than its factorization.

157028051684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15116364 (or 15116355 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 47.

The spelling of 157028051684 in words is "one hundred fifty-seven billion, twenty-eight million, fifty-one thousand, six hundred eighty-four".

Divisors: 1 2 4 7 14 28 49 53 98 106 196 212 371 742 1484 2597 5194 10388 15116293 30232586 60465172 105814051 211628102 423256204 740698357 801163529 1481396714 1602327058 2962793428 3204654116 5608144703 11216289406 22432578812 39257012921 78514025842 157028051684