Base | Representation |
---|---|
bin | 1000101100010… |
… | …00010000011000 |
3 | 12002012012111202 |
4 | 10112020100120 |
5 | 122131103343 |
6 | 11122413332 |
7 | 1543503104 |
oct | 426102030 |
9 | 162165452 |
10 | 72909848 |
11 | 38179280 |
12 | 20501248 |
13 | 1214a12b |
14 | 997c904 |
15 | 6602db8 |
hex | 4588418 |
72909848 has 32 divisors (see below), whose sum is σ = 149497920. Its totient is φ = 33060000.
The previous prime is 72909817. The next prime is 72909853. The reversal of 72909848 is 84890927.
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, 49523 + ... + 50973.
It is an arithmetic number, because the mean of its divisors is an integer number (4671810).
Almost surely, 272909848 is an apocalyptic number.
It is an amenable number.
72909848 is an abundant number, since it is smaller than the sum of its proper divisors (76588072).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72909848 is a wasteful number, since it uses less digits than its factorization.
72909848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2039 (or 2035 counting only the distinct ones).
The product of its (nonzero) digits is 290304, while the sum is 47.
The square root of 72909848 is about 8538.7263687274. The cubic root of 72909848 is about 417.7618050287.
The spelling of 72909848 in words is "seventy-two million, nine hundred nine thousand, eight hundred forty-eight".
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