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157704053 = 13172512843
BaseRepresentation
bin10010110011001…
…01111101110101
3101222202012021212
421121211331311
5310333012203
623352051205
73623314403
oct1131457565
9358665255
10157704053
1181024431
1244993b05
1326898710
1416d32473
15dca21d8
hex9665f75

157704053 has 16 divisors (see below), whose sum is σ = 180605376. Its totient is φ = 136416000.

The previous prime is 157704049. The next prime is 157704061. The reversal of 157704053 is 350407751.

It is a cyclic number.

It is not a de Polignac number, because 157704053 - 22 = 157704049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157704023) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 54050 + ... + 56892.

It is an arithmetic number, because the mean of its divisors is an integer number (11287836).

Almost surely, 2157704053 is an apocalyptic number.

157704053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

157704053 is a deficient number, since it is larger than the sum of its proper divisors (22901323).

157704053 is a wasteful number, since it uses less digits than its factorization.

157704053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 157704053 is about 12558.0274326823. The cubic root of 157704053 is about 540.2742696807.

The spelling of 157704053 in words is "one hundred fifty-seven million, seven hundred four thousand, fifty-three".

Divisors: 1 13 17 221 251 2843 3263 4267 36959 48331 55471 628303 713593 9276709 12131081 157704053