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157354807 = 617932653
BaseRepresentation
bin10010110000100…
…00101100110111
3101222002110012211
421120100230313
5310240323212
623340354251
73620331241
oct1130205467
9358073184
10157354807
1180905aa5
1244845987
13267a576c
1416c81091
15dc339a7
hex9610b37

157354807 has 8 divisors (see below), whose sum is σ = 161963840. Its totient is φ = 152811360.

The previous prime is 157354787. The next prime is 157354817. The reversal of 157354807 is 708453751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-157354807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157354807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157354817) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11508 + ... + 21145.

It is an arithmetic number, because the mean of its divisors is an integer number (20245480).

Almost surely, 2157354807 is an apocalyptic number.

157354807 is a deficient number, since it is larger than the sum of its proper divisors (4609033).

157354807 is an equidigital number, since it uses as much as digits as its factorization.

157354807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32793.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 157354807 is about 12544.1144366591. The cubic root of 157354807 is about 539.8751506063.

The spelling of 157354807 in words is "one hundred fifty-seven million, three hundred fifty-four thousand, eight hundred seven".

Divisors: 1 61 79 4819 32653 1991833 2579587 157354807