Base | Representation |
---|---|
bin | 1111101010010… |
… | …01011010101011 |
3 | 100011012102111010 |
4 | 13311021122223 |
5 | 232112411330 |
6 | 21011435003 |
7 | 3153435555 |
oct | 765113253 |
9 | 304172433 |
10 | 131372715 |
11 | 6817a2a1 |
12 | 37bb5a63 |
13 | 212a9546 |
14 | 1363a4d5 |
15 | b8003b0 |
hex | 7d496ab |
131372715 has 16 divisors (see below), whose sum is σ = 211074336. Its totient is φ = 69772800.
The previous prime is 131372713. The next prime is 131372723. The reversal of 131372715 is 517273131.
It is not a de Polignac number, because 131372715 - 21 = 131372713 is a prime.
It is a super-3 number, since 3×1313727153 (a number of 25 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (131372713) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14556 + ... + 21785.
It is an arithmetic number, because the mean of its divisors is an integer number (13192146).
Almost surely, 2131372715 is an apocalyptic number.
131372715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
131372715 is a deficient number, since it is larger than the sum of its proper divisors (79701621).
131372715 is a wasteful number, since it uses less digits than its factorization.
131372715 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36590.
The product of its digits is 4410, while the sum is 30.
The square root of 131372715 is about 11461.7937077929. The cubic root of 131372715 is about 508.3565126640.
The spelling of 131372715 in words is "one hundred thirty-one million, three hundred seventy-two thousand, seven hundred fifteen".
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