Base | Representation |
---|---|
bin | 1111100111110… |
… | …01100000011001 |
3 | 100010120210111101 |
4 | 13303321200121 |
5 | 232021423101 |
6 | 21000431401 |
7 | 3150603364 |
oct | 763714031 |
9 | 303523441 |
10 | 131045401 |
11 | 67a76393 |
12 | 37a78561 |
13 | 211c3576 |
14 | 135930db |
15 | b788401 |
hex | 7cf9819 |
131045401 has 16 divisors (see below), whose sum is σ = 144184320. Its totient is φ = 118563840.
The previous prime is 131045377. The next prime is 131045417. The reversal of 131045401 is 104540131.
It is not a de Polignac number, because 131045401 - 225 = 97490969 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (131045441) 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, 87265 + ... + 88753.
It is an arithmetic number, because the mean of its divisors is an integer number (9011520).
Almost surely, 2131045401 is an apocalyptic number.
It is an amenable number.
131045401 is a deficient number, since it is larger than the sum of its proper divisors (13138919).
131045401 is a wasteful number, since it uses less digits than its factorization.
131045401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1704.
The product of its (nonzero) digits is 240, while the sum is 19.
The square root of 131045401 is about 11447.5063223394. The cubic root of 131045401 is about 507.9339729115.
Adding to 131045401 its reverse (104540131), we get a palindrome (235585532).
The spelling of 131045401 in words is "one hundred thirty-one million, forty-five thousand, four hundred one".
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