Base | Representation |
---|---|
bin | 1000101001000… |
… | …00101011001100 |
3 | 12001101122112010 |
4 | 10110200223030 |
5 | 122024014310 |
6 | 11105341220 |
7 | 1540055136 |
oct | 424405314 |
9 | 161348463 |
10 | 72485580 |
11 | 37a09542 |
12 | 20337810 |
13 | 1202bc9b |
14 | 98ac056 |
15 | 656c320 |
hex | 4520acc |
72485580 has 48 divisors (see below), whose sum is σ = 203503104. Its totient is φ = 19277760.
The previous prime is 72485561. The next prime is 72485641. The reversal of 72485580 is 8558427.
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, 24459 + ... + 27261.
It is an arithmetic number, because the mean of its divisors is an integer number (4239648).
Almost surely, 272485580 is an apocalyptic number.
It is an amenable number.
72485580 is an abundant number, since it is smaller than the sum of its proper divisors (131017524).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72485580 is a wasteful number, since it uses less digits than its factorization.
72485580 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3246 (or 3244 counting only the distinct ones).
The product of its (nonzero) digits is 89600, while the sum is 39.
The square root of 72485580 is about 8513.8463692975. The cubic root of 72485580 is about 416.9498988051.
The spelling of 72485580 in words is "seventy-two million, four hundred eighty-five thousand, five hundred eighty".
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