Base | Representation |
---|---|
bin | 1111101100011… |
… | …01101010011010 |
3 | 100011201121221021 |
4 | 13312031222122 |
5 | 232200333000 |
6 | 21021433054 |
7 | 3156011542 |
oct | 766155232 |
9 | 304647837 |
10 | 131652250 |
11 | 68350314 |
12 | 3810b78a |
13 | 21376852 |
14 | 136b0322 |
15 | b85811a |
hex | 7d8da9a |
131652250 has 32 divisors (see below), whose sum is σ = 260958672. Its totient is φ = 49561600.
The previous prime is 131652229. The next prime is 131652251. The reversal of 131652250 is 52256131.
It can be written as a sum of positive squares in 8 ways, for example, as 56535361 + 75116889 = 7519^2 + 8667^2 .
It is a Harshad number since it is a multiple of its sum of digits (25).
It is not an unprimeable number, because it can be changed into a prime (131652251) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11239 + ... + 19738.
Almost surely, 2131652250 is an apocalyptic number.
131652250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131652250 is a deficient number, since it is larger than the sum of its proper divisors (129306422).
131652250 is a wasteful number, since it uses less digits than its factorization.
131652250 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31011 (or 31001 counting only the distinct ones).
The product of its (nonzero) digits is 1800, while the sum is 25.
The square root of 131652250 is about 11473.9814362757. The cubic root of 131652250 is about 508.7168177381.
The spelling of 131652250 in words is "one hundred thirty-one million, six hundred fifty-two thousand, two hundred fifty".
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