Base | Representation |
---|---|
bin | 1111101000011… |
… | …10101001100001 |
3 | 100010202012021210 |
4 | 13310032221201 |
5 | 232032211001 |
6 | 21002340333 |
7 | 3151414020 |
oct | 764165141 |
9 | 303665253 |
10 | 131132001 |
11 | 68025460 |
12 | 37aba6a9 |
13 | 21223b00 |
14 | 135b68b7 |
15 | b7a3dd6 |
hex | 7d0ea61 |
131132001 has 48 divisors (see below), whose sum is σ = 236113920. Its totient is φ = 62861760.
The previous prime is 131131991. The next prime is 131132003. The reversal of 131132001 is 100231131.
It is not a de Polignac number, because 131132001 - 210 = 131130977 is a prime.
It is not an unprimeable number, because it can be changed into a prime (131132003) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37360 + ... + 40718.
It is an arithmetic number, because the mean of its divisors is an integer number (4919040).
Almost surely, 2131132001 is an apocalyptic number.
131132001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
131132001 is a deficient number, since it is larger than the sum of its proper divisors (104981919).
131132001 is a wasteful number, since it uses less digits than its factorization.
131132001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3406 (or 3393 counting only the distinct ones).
The product of its (nonzero) digits is 18, while the sum is 12.
The square root of 131132001 is about 11451.2881808118. The cubic root of 131132001 is about 508.0458359142.
Adding to 131132001 its reverse (100231131), we get a palindrome (231363132).
The spelling of 131132001 in words is "one hundred thirty-one million, one hundred thirty-two thousand, one".
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