Base | Representation |
---|---|
bin | 1000101100000… |
… | …10010011010000 |
3 | 12002010222001100 |
4 | 10112002103100 |
5 | 122124313311 |
6 | 11122104400 |
7 | 1543342020 |
oct | 426022320 |
9 | 162128040 |
10 | 72885456 |
11 | 38161a16 |
12 | 204ab100 |
13 | 1213bcb7 |
14 | 9973a80 |
15 | 65eaa56 |
hex | 45824d0 |
72885456 has 60 divisors (see below), whose sum is σ = 233120992. Its totient is φ = 20824128.
The previous prime is 72885451. The next prime is 72885467. The reversal of 72885456 is 65458827.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72885451) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35146 + ... + 37161.
Almost surely, 272885456 is an apocalyptic number.
It is an amenable number.
72885456 is an abundant number, since it is smaller than the sum of its proper divisors (160235536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72885456 is a wasteful number, since it uses less digits than its factorization.
72885456 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 72328 (or 72319 counting only the distinct ones).
The product of its digits is 537600, while the sum is 45.
The square root of 72885456 is about 8537.2979331871. The cubic root of 72885456 is about 417.7152124087.
The spelling of 72885456 in words is "seventy-two million, eight hundred eighty-five thousand, four hundred fifty-six".
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