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152130231 = 3411170741
BaseRepresentation
bin10010001000101…
…01001010110111
3101121021000110000
421010111022313
5302421131411
623032402343
73525041241
oct1104251267
9347230400
10152130231
1178967770
1242b463b3
13256966b6
14162c1091
15d550956
hex91152b7

152130231 has 20 divisors (see below), whose sum is σ = 247917384. Its totient is φ = 92199600.

The previous prime is 152130227. The next prime is 152130233. The reversal of 152130231 is 132031251.

It is not a de Polignac number, because 152130231 - 22 = 152130227 is a prime.

It is a super-2 number, since 2×1521302312 = 46287214368226722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152130233) 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 19 ways as a sum of consecutive naturals, for example, 84480 + ... + 86261.

Almost surely, 2152130231 is an apocalyptic number.

152130231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

152130231 is a deficient number, since it is larger than the sum of its proper divisors (95787153).

152130231 is a wasteful number, since it uses less digits than its factorization.

152130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170764 (or 170755 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 152130231 is about 12334.1084396076. The cubic root of 152130231 is about 533.8327022952.

Adding to 152130231 its reverse (132031251), we get a palindrome (284161482).

The spelling of 152130231 in words is "one hundred fifty-two million, one hundred thirty thousand, two hundred thirty-one".

Divisors: 1 3 9 11 27 33 81 99 297 891 170741 512223 1536669 1878151 4610007 5634453 13830021 16903359 50710077 152130231