Base | Representation |
---|---|
bin | 1000101000111… |
… | …10100100110100 |
3 | 12001101012201121 |
4 | 10110132210310 |
5 | 122023230410 |
6 | 11105233324 |
7 | 1540021102 |
oct | 424364464 |
9 | 161335647 |
10 | 72476980 |
11 | 37a03034 |
12 | 20332844 |
13 | 120280b4 |
14 | 98a8c72 |
15 | 65699da |
hex | 451e934 |
72476980 has 48 divisors (see below), whose sum is σ = 155361024. Its totient is φ = 28396800.
The previous prime is 72476959. The next prime is 72476993. The reversal of 72476980 is 8967427.
It is a congruent number.
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, 310944 + ... + 311176.
It is an arithmetic number, because the mean of its divisors is an integer number (3236688).
Almost surely, 272476980 is an apocalyptic number.
It is an amenable number.
72476980 is an abundant number, since it is smaller than the sum of its proper divisors (82884044).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72476980 is a wasteful number, since it uses less digits than its factorization.
72476980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 496 (or 494 counting only the distinct ones).
The product of its (nonzero) digits is 169344, while the sum is 43.
The square root of 72476980 is about 8513.3412946974. The cubic root of 72476980 is about 416.9334085783.
The spelling of 72476980 in words is "seventy-two million, four hundred seventy-six thousand, nine hundred eighty".
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