Base | Representation |
---|---|
bin | 1100110111011… |
… | …00001000111100 |
3 | 21112002000010101 |
4 | 12123230020330 |
5 | 210112000410 |
6 | 14413050444 |
7 | 2450215225 |
oct | 633541074 |
9 | 245060111 |
10 | 107921980 |
11 | 55a12421 |
12 | 30186a24 |
13 | 1948857a |
14 | 1049424c |
15 | 971bd3a |
hex | 66ec23c |
107921980 has 24 divisors (see below), whose sum is σ = 236490912. Its totient is φ = 41291712.
The previous prime is 107921971. The next prime is 107922013. The reversal of 107921980 is 89129701.
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, 116847 + ... + 117766.
It is an arithmetic number, because the mean of its divisors is an integer number (9853788).
Almost surely, 2107921980 is an apocalyptic number.
107921980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
107921980 is an abundant number, since it is smaller than the sum of its proper divisors (128568932).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
107921980 is a wasteful number, since it uses less digits than its factorization.
107921980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 234645 (or 234643 counting only the distinct ones).
The product of its (nonzero) digits is 9072, while the sum is 37.
The square root of 107921980 is about 10388.5504282359. The cubic root of 107921980 is about 476.1056129375.
The spelling of 107921980 in words is "one hundred seven million, nine hundred twenty-one thousand, nine hundred eighty".
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