Base | Representation |
---|---|
bin | 1111101000110… |
… | …00000111000000 |
3 | 100010211011110000 |
4 | 13310120013000 |
5 | 232034431002 |
6 | 21003240000 |
7 | 3151635006 |
oct | 764300700 |
9 | 303734400 |
10 | 131170752 |
11 | 68051589 |
12 | 37b19000 |
13 | 2123863b |
14 | 135c6a76 |
15 | b7b061c |
hex | 7d181c0 |
131170752 has 70 divisors (see below), whose sum is σ = 388846568. Its totient is φ = 43721856.
The previous prime is 131170751. The next prime is 131170777. The reversal of 131170752 is 257071131.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131170751) by changing a digit.
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 9 ways as a sum of consecutive naturals, for example, 7468 + ... + 17835.
Almost surely, 2131170752 is an apocalyptic number.
131170752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
131170752 is an abundant number, since it is smaller than the sum of its proper divisors (257675816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131170752 is an equidigital number, since it uses as much as digits as its factorization.
131170752 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25327 (or 25308 counting only the distinct ones).
The product of its (nonzero) digits is 1470, while the sum is 27.
The square root of 131170752 is about 11452.9800488781. The cubic root of 131170752 is about 508.0958754293.
The spelling of 131170752 in words is "one hundred thirty-one million, one hundred seventy thousand, seven hundred fifty-two".
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