Base | Representation |
---|---|
bin | 1111101011011… |
… | …00101101001100 |
3 | 100011110202202122 |
4 | 13311230231030 |
5 | 232132023020 |
6 | 21014512112 |
7 | 3154610150 |
oct | 765545514 |
9 | 304422678 |
10 | 131517260 |
11 | 68268956 |
12 | 38065638 |
13 | 2132a284 |
14 | 13677060 |
15 | b82d125 |
hex | 7d6cb4c |
131517260 has 48 divisors (see below), whose sum is σ = 317991744. Its totient is φ = 44755968.
The previous prime is 131517247. The next prime is 131517293. The reversal of 131517260 is 62715131.
131517260 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
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, 15752 + ... + 22608.
It is an arithmetic number, because the mean of its divisors is an integer number (6624828).
Almost surely, 2131517260 is an apocalyptic number.
131517260 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 131517260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158995872).
131517260 is an abundant number, since it is smaller than the sum of its proper divisors (186474484).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131517260 is a wasteful number, since it uses less digits than its factorization.
131517260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7010 (or 7008 counting only the distinct ones).
The product of its (nonzero) digits is 1260, while the sum is 26.
The square root of 131517260 is about 11468.0974882497. The cubic root of 131517260 is about 508.5428868773.
The spelling of 131517260 in words is "one hundred thirty-one million, five hundred seventeen thousand, two hundred sixty".
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