Search a number
-
+
157392132 = 22315186861
BaseRepresentation
bin10010110000110…
…01110100000100
3101222011100102020
421120121310010
5310243022012
623341243140
73620545122
oct1130316404
9358140366
10157392132
1180931047
12448634b0
13267b9751
1416c90912
15dc3ea8c
hex9619d04

157392132 has 24 divisors (see below), whose sum is σ = 369684672. Its totient is φ = 52116000.

The previous prime is 157392121. The next prime is 157392173. The reversal of 157392132 is 231293751.

It is a junction number, because it is equal to n+sod(n) for n = 157392093 and 157392102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41619 + ... + 45242.

It is an arithmetic number, because the mean of its divisors is an integer number (15403528).

Almost surely, 2157392132 is an apocalyptic number.

157392132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157392132 is an abundant number, since it is smaller than the sum of its proper divisors (212292540).

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

157392132 is a wasteful number, since it uses less digits than its factorization.

157392132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87019 (or 87017 counting only the distinct ones).

The product of its digits is 11340, while the sum is 33.

The square root of 157392132 is about 12545.6020979465. The cubic root of 157392132 is about 539.9178338632.

It can be divided in two parts, 15739 and 2132, that added together give a palindrome (17871).

The spelling of 157392132 in words is "one hundred fifty-seven million, three hundred ninety-two thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 151 302 453 604 906 1812 86861 173722 260583 347444 521166 1042332 13116011 26232022 39348033 52464044 78696066 157392132