Base | Representation |
---|---|
bin | 1111100111101… |
… | …00110010011011 |
3 | 100010112210222121 |
4 | 13303310302123 |
5 | 232020313300 |
6 | 21000202111 |
7 | 3150463135 |
oct | 763646233 |
9 | 303483877 |
10 | 131026075 |
11 | 67a62914 |
12 | 37a69337 |
13 | 211b782b |
14 | 1358a055 |
15 | b78281a |
hex | 7cf4c9b |
131026075 has 6 divisors (see below), whose sum is σ = 162472364. Its totient is φ = 104820840.
The previous prime is 131025977. The next prime is 131026087. The reversal of 131026075 is 570620131.
It is a de Polignac number, because none of the positive numbers 2k-131026075 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 5241043 = 131026075 / (1 + 3 + 1 + 0 + 2 + 6 + 0 + 7 + 5).
It is a Duffinian number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2620497 + ... + 2620546.
Almost surely, 2131026075 is an apocalyptic number.
131026075 is a deficient number, since it is larger than the sum of its proper divisors (31446289).
131026075 is an equidigital number, since it uses as much as digits as its factorization.
131026075 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5241053 (or 5241048 counting only the distinct ones).
The product of its (nonzero) digits is 1260, while the sum is 25.
The square root of 131026075 is about 11446.6621772463. The cubic root of 131026075 is about 507.9090023937.
The spelling of 131026075 in words is "one hundred thirty-one million, twenty-six thousand, seventy-five".
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