Base | Representation |
---|---|
bin | 1111101110101… |
… | …00000000010111 |
3 | 100012021021011120 |
4 | 13313110000113 |
5 | 232234043000 |
6 | 21031535023 |
7 | 3161321550 |
oct | 767240027 |
9 | 305237146 |
10 | 131940375 |
11 | 68527836 |
12 | 3822a473 |
13 | 21447a38 |
14 | 13747327 |
15 | b8b36a0 |
hex | 7dd4017 |
131940375 has 32 divisors (see below), whose sum is σ = 250917888. Its totient is φ = 60314400.
The previous prime is 131940331. The next prime is 131940437. The reversal of 131940375 is 573049131.
It is not a de Polignac number, because 131940375 - 28 = 131940119 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22507 + ... + 27756.
It is an arithmetic number, because the mean of its divisors is an integer number (7841184).
Almost surely, 2131940375 is an apocalyptic number.
131940375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
131940375 is a deficient number, since it is larger than the sum of its proper divisors (118977513).
131940375 is an equidigital number, since it uses as much as digits as its factorization.
131940375 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50288 (or 50278 counting only the distinct ones).
The product of its (nonzero) digits is 11340, while the sum is 33.
The square root of 131940375 is about 11486.5301549249. The cubic root of 131940375 is about 509.0876614714.
It can be divided in two parts, 131 and 940375, that added together give a triangular number (940506 = T1371).
The spelling of 131940375 in words is "one hundred thirty-one million, nine hundred forty thousand, three hundred seventy-five".
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