Base | Representation |
---|---|
bin | 1111101000000… |
… | …10000001101110 |
3 | 100010122120101000 |
4 | 13310002001232 |
5 | 232024032202 |
6 | 21001301130 |
7 | 3151110213 |
oct | 764020156 |
9 | 303576330 |
10 | 131080302 |
11 | 67a9a631 |
12 | 37a947a6 |
13 | 21206412 |
14 | 135a1b0a |
15 | b79391c |
hex | 7d0206e |
131080302 has 32 divisors (see below), whose sum is σ = 308426400. Its totient is φ = 41122944.
The previous prime is 131080283. The next prime is 131080343. The reversal of 131080302 is 203080131.
It is a super-2 number, since 2×1310803022 = 34364091144822408, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70477 + ... + 72312.
It is an arithmetic number, because the mean of its divisors is an integer number (9638325).
Almost surely, 2131080302 is an apocalyptic number.
131080302 is an abundant number, since it is smaller than the sum of its proper divisors (177346098).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131080302 is a wasteful number, since it uses less digits than its factorization.
131080302 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142817 (or 142811 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
The square root of 131080302 is about 11449.0306139865. The cubic root of 131080302 is about 507.9790611784.
The spelling of 131080302 in words is "one hundred thirty-one million, eighty thousand, three hundred two".
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