Base | Representation |
---|---|
bin | 1111101010011… |
… | …00111000011110 |
3 | 100011020010221212 |
4 | 13311030320132 |
5 | 232113340120 |
6 | 21012024422 |
7 | 3153525134 |
oct | 765147036 |
9 | 304203855 |
10 | 131386910 |
11 | 68189a26 |
12 | 38002112 |
13 | 212b2b45 |
14 | 13641754 |
15 | b8046c5 |
hex | 7d4ce1e |
131386910 has 16 divisors (see below), whose sum is σ = 237400416. Its totient is φ = 52353888.
The previous prime is 131386901. The next prime is 131386921. The reversal of 131386910 is 19683131.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22349 + ... + 27608.
It is an arithmetic number, because the mean of its divisors is an integer number (14837526).
Almost surely, 2131386910 is an apocalyptic number.
131386910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131386910 is a deficient number, since it is larger than the sum of its proper divisors (106013506).
131386910 is a wasteful number, since it uses less digits than its factorization.
131386910 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 50227.
The product of its (nonzero) digits is 3888, while the sum is 32.
The square root of 131386910 is about 11462.4129222429. The cubic root of 131386910 is about 508.3748215414.
The spelling of 131386910 in words is "one hundred thirty-one million, three hundred eighty-six thousand, nine hundred ten".
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