Base | Representation |
---|---|
bin | 1111101000100… |
… | …11101011101100 |
3 | 100010210020120110 |
4 | 13310103223230 |
5 | 232033340440 |
6 | 21003020020 |
7 | 3151531104 |
oct | 764235354 |
9 | 303706513 |
10 | 131152620 |
11 | 680399a5 |
12 | 37b0a610 |
13 | 21230301 |
14 | 135c0204 |
15 | b7aa080 |
hex | 7d13aec |
131152620 has 96 divisors (see below), whose sum is σ = 394523136. Its totient is φ = 32435200.
The previous prime is 131152583. The next prime is 131152627. The reversal of 131152620 is 26251131.
It is not an unprimeable number, because it can be changed into a prime (131152627) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71515 + ... + 73325.
It is an arithmetic number, because the mean of its divisors is an integer number (4109616).
Almost surely, 2131152620 is an apocalyptic number.
131152620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 131152620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197261568).
131152620 is an abundant number, since it is smaller than the sum of its proper divisors (263370516).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131152620 is a wasteful number, since it uses less digits than its factorization.
131152620 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1911 (or 1909 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 21.
The square root of 131152620 is about 11452.1884371503. The cubic root of 131152620 is about 508.0724626415.
The spelling of 131152620 in words is "one hundred thirty-one million, one hundred fifty-two thousand, six hundred twenty".
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