Base | Representation |
---|---|
bin | 1000101001000… |
… | …11101111010000 |
3 | 12001102021201212 |
4 | 10110203233100 |
5 | 122024420003 |
6 | 11105515252 |
7 | 1540136543 |
oct | 424435720 |
9 | 161367655 |
10 | 72498128 |
11 | 37a17a0a |
12 | 20342b28 |
13 | 12034901 |
14 | 98b285a |
15 | 6570dd8 |
hex | 4523bd0 |
72498128 has 20 divisors (see below), whose sum is σ = 140660640. Its totient is φ = 36198624.
The previous prime is 72498109. The next prime is 72498131. The reversal of 72498128 is 82189427.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10493 + ... + 15971.
It is an arithmetic number, because the mean of its divisors is an integer number (7033032).
Almost surely, 272498128 is an apocalyptic number.
It is an amenable number.
72498128 is a deficient number, since it is larger than the sum of its proper divisors (68162512).
72498128 is a wasteful number, since it uses less digits than its factorization.
72498128 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6314 (or 6308 counting only the distinct ones).
The product of its digits is 64512, while the sum is 41.
The square root of 72498128 is about 8514.5832546285. The cubic root of 72498128 is about 416.9739568566.
The spelling of 72498128 in words is "seventy-two million, four hundred ninety-eight thousand, one hundred twenty-eight".
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