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157048907 = 179238171
BaseRepresentation
bin10010101110001…
…10000001001011
3101221111220121012
421113012001023
5310201031112
623330034135
73614615351
oct1127060113
9357456535
10157048907
1180717194
124471894b
13266c9462
1416c017d1
15dbc3022
hex95c604b

157048907 has 4 divisors (see below), whose sum is σ = 166287096. Its totient is φ = 147810720.

The previous prime is 157048897. The next prime is 157048951. The reversal of 157048907 is 709840751.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 709840751 = 5233135647.

It is a cyclic number.

It is not a de Polignac number, because 157048907 - 210 = 157047883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157048967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4619069 + ... + 4619102.

It is an arithmetic number, because the mean of its divisors is an integer number (41571774).

Almost surely, 2157048907 is an apocalyptic number.

157048907 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

157048907 is a deficient number, since it is larger than the sum of its proper divisors (9238189).

157048907 is an equidigital number, since it uses as much as digits as its factorization.

157048907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9238188.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 157048907 is about 12531.9155359426. The cubic root of 157048907 is about 539.5250819853.

The spelling of 157048907 in words is "one hundred fifty-seven million, forty-eight thousand, nine hundred seven".

Divisors: 1 17 9238171 157048907