Base | Representation |
---|---|
bin | 1111101010011… |
… | …10001010011000 |
3 | 100011020102011000 |
4 | 13311032022120 |
5 | 232114022102 |
6 | 21012105000 |
7 | 3153546333 |
oct | 765161230 |
9 | 304212130 |
10 | 131392152 |
11 | 68192961 |
12 | 38005160 |
13 | 212b5348 |
14 | 1364361a |
15 | b80601c |
hex | 7d4e298 |
131392152 has 32 divisors (see below), whose sum is σ = 364978800. Its totient is φ = 43797312.
The previous prime is 131392111. The next prime is 131392171. The reversal of 131392152 is 251293131.
It is a super-2 number, since 2×1313921522 = 34527795214382208, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303933 + ... + 304364.
Almost surely, 2131392152 is an apocalyptic number.
131392152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131392152 is an abundant number, since it is smaller than the sum of its proper divisors (233586648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131392152 is a wasteful number, since it uses less digits than its factorization.
131392152 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 608312 (or 608302 counting only the distinct ones).
The product of its digits is 1620, while the sum is 27.
The square root of 131392152 is about 11462.6415803688. The cubic root of 131392152 is about 508.3815824010.
The spelling of 131392152 in words is "one hundred thirty-one million, three hundred ninety-two thousand, one hundred fifty-two".
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