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157132255 = 574489493
BaseRepresentation
bin10010101110110…
…10010111011111
3101221200010221011
421113122113133
5310211213010
623331520051
73615413350
oct1127322737
9357603834
10157132255
1180773875
1244759027
1326728387
1416c23d27
15dbdca8a
hex95da5df

157132255 has 8 divisors (see below), whose sum is σ = 215495712. Its totient is φ = 107747808.

The previous prime is 157132253. The next prime is 157132291. The reversal of 157132255 is 552231751.

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

It is not a de Polignac number, because 157132255 - 21 = 157132253 is a prime.

It is a super-2 number, since 2×1571322552 = 49381091122770050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157132253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2244712 + ... + 2244781.

It is an arithmetic number, because the mean of its divisors is an integer number (26936964).

Almost surely, 2157132255 is an apocalyptic number.

157132255 is a deficient number, since it is larger than the sum of its proper divisors (58363457).

157132255 is an equidigital number, since it uses as much as digits as its factorization.

157132255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489505.

The product of its digits is 10500, while the sum is 31.

The square root of 157132255 is about 12535.2405242181. The cubic root of 157132255 is about 539.6205095491.

The spelling of 157132255 in words is "one hundred fifty-seven million, one hundred thirty-two thousand, two hundred fifty-five".

Divisors: 1 5 7 35 4489493 22447465 31426451 157132255