Base | Representation |
---|---|
bin | 1111101110001… |
… | …01011001110000 |
3 | 100012011020010012 |
4 | 13313011121300 |
5 | 232230134220 |
6 | 21030354052 |
7 | 3160652300 |
oct | 767053160 |
9 | 305136105 |
10 | 131880560 |
11 | 684968a9 |
12 | 381bb928 |
13 | 21426746 |
14 | 1372d600 |
15 | b8a0ac5 |
hex | 7dc5670 |
131880560 has 120 divisors (see below), whose sum is σ = 377855280. Its totient is φ = 42534912.
The previous prime is 131880557. The next prime is 131880571. The reversal of 131880560 is 65088131.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65651 + ... + 67629.
It is an arithmetic number, because the mean of its divisors is an integer number (3148794).
Almost surely, 2131880560 is an apocalyptic number.
131880560 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 131880560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188927640).
131880560 is an abundant number, since it is smaller than the sum of its proper divisors (245974720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131880560 is a wasteful number, since it uses less digits than its factorization.
131880560 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2023 (or 2010 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 32.
The square root of 131880560 is about 11483.9261578957. The cubic root of 131880560 is about 509.0107184298.
The spelling of 131880560 in words is "one hundred thirty-one million, eight hundred eighty thousand, five hundred sixty".
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