Base | Representation |
---|---|
bin | 1000101100000… |
… | …11111001111100 |
3 | 12002011022001202 |
4 | 10112003321330 |
5 | 122130021103 |
6 | 11122155032 |
7 | 1543400126 |
oct | 426037174 |
9 | 162138052 |
10 | 72892028 |
11 | 38166950 |
12 | 204b2a78 |
13 | 12141ca1 |
14 | 9976216 |
15 | 65ec988 |
hex | 4583e7c |
72892028 has 24 divisors (see below), whose sum is σ = 139708800. Its totient is φ = 33001520.
The previous prime is 72892019. The next prime is 72892049. The reversal of 72892028 is 82029827.
It is a junction number, because it is equal to n+sod(n) for n = 72891982 and 72892000.
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, 8423 + ... + 14721.
It is an arithmetic number, because the mean of its divisors is an integer number (5821200).
Almost surely, 272892028 is an apocalyptic number.
It is an amenable number.
72892028 is a deficient number, since it is larger than the sum of its proper divisors (66816772).
72892028 is a wasteful number, since it uses less digits than its factorization.
72892028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6577 (or 6575 counting only the distinct ones).
The product of its (nonzero) digits is 32256, while the sum is 38.
The square root of 72892028 is about 8537.6828238112. The cubic root of 72892028 is about 417.7277670025.
The spelling of 72892028 in words is "seventy-two million, eight hundred ninety-two thousand, twenty-eight".
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