Base | Representation |
---|---|
bin | 1000101011001… |
… | …00010100000001 |
3 | 12001220201120001 |
4 | 10111210110001 |
5 | 122111401000 |
6 | 11115320001 |
7 | 1542320635 |
oct | 425442401 |
9 | 161821501 |
10 | 72762625 |
11 | 38088701 |
12 | 20450001 |
13 | 120c8110 |
14 | 9940dc5 |
15 | 65c446a |
hex | 4564501 |
72762625 has 16 divisors (see below), whose sum is σ = 97795152. Its totient is φ = 53731200.
The previous prime is 72762607. The next prime is 72762629. The reversal of 72762625 is 52626727.
It can be written as a sum of positive squares in 8 ways, for example, as 15745024 + 57017601 = 3968^2 + 7551^2 .
It is not a de Polignac number, because 72762625 - 211 = 72760577 is a prime.
It is not an unprimeable number, because it can be changed into a prime (72762629) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20764 + ... + 24013.
It is an arithmetic number, because the mean of its divisors is an integer number (6112197).
Almost surely, 272762625 is an apocalyptic number.
It is an amenable number.
72762625 is a deficient number, since it is larger than the sum of its proper divisors (25032527).
72762625 is a wasteful number, since it uses less digits than its factorization.
72762625 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 44805 (or 44795 counting only the distinct ones).
The product of its digits is 70560, while the sum is 37.
The square root of 72762625 is about 8530.1011131170. The cubic root of 72762625 is about 417.4804274473.
The spelling of 72762625 in words is "seventy-two million, seven hundred sixty-two thousand, six hundred twenty-five".
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