Base | Representation |
---|---|
bin | 1111100111101… |
… | …10000001101100 |
3 | 100010120001221111 |
4 | 13303312001230 |
5 | 232020444043 |
6 | 21000241404 |
7 | 3150514003 |
oct | 763660154 |
9 | 303501844 |
10 | 131031148 |
11 | 67a66706 |
12 | 37a70264 |
13 | 211b9c31 |
14 | 1358bc3a |
15 | b78409d |
hex | 7cf606c |
131031148 has 12 divisors (see below), whose sum is σ = 234637480. Its totient is φ = 63991872.
The previous prime is 131031137. The next prime is 131031167. The reversal of 131031148 is 841130131.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380733 + ... + 381076.
Almost surely, 2131031148 is an apocalyptic number.
It is an amenable number.
131031148 is a deficient number, since it is larger than the sum of its proper divisors (103606332).
131031148 is a wasteful number, since it uses less digits than its factorization.
131031148 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 761856 (or 761854 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 22.
The square root of 131031148 is about 11446.8837680829. The cubic root of 131031148 is about 507.9155572954.
Adding to 131031148 its reverse (841130131), we get a palindrome (972161279).
The spelling of 131031148 in words is "one hundred thirty-one million, thirty-one thousand, one hundred forty-eight".
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