Base | Representation |
---|---|
bin | 1000101000101… |
… | …00111000010100 |
3 | 12001022012020210 |
4 | 10110110320110 |
5 | 122020443033 |
6 | 11104325420 |
7 | 1536464241 |
oct | 424247024 |
9 | 161265223 |
10 | 72437268 |
11 | 37986212 |
12 | 20313870 |
13 | 12012cb7 |
14 | 98985c8 |
15 | 655cd63 |
hex | 4514e14 |
72437268 has 24 divisors (see below), whose sum is σ = 173589472. Its totient is φ = 23493024.
The previous prime is 72437263. The next prime is 72437279. The reversal of 72437268 is 86273427.
It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72437263) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81130 + ... + 82017.
Almost surely, 272437268 is an apocalyptic number.
It is an amenable number.
72437268 is an abundant number, since it is smaller than the sum of its proper divisors (101152204).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72437268 is a wasteful number, since it uses less digits than its factorization.
72437268 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 163191 (or 163189 counting only the distinct ones).
The product of its digits is 112896, while the sum is 39.
The square root of 72437268 is about 8511.0086358786. The cubic root of 72437268 is about 416.8572451561.
The spelling of 72437268 in words is "seventy-two million, four hundred thirty-seven thousand, two hundred sixty-eight".
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