Base | Representation |
---|---|
bin | 1000101001101… |
… | …10111110011101 |
3 | 12001120021211021 |
4 | 10110312332131 |
5 | 122034430200 |
6 | 11111324141 |
7 | 1540615351 |
oct | 424667635 |
9 | 161507737 |
10 | 72576925 |
11 | 37a71133 |
12 | 20380651 |
13 | 12061735 |
14 | 98d3461 |
15 | 658941a |
hex | 4536f9d |
72576925 has 6 divisors (see below), whose sum is σ = 89995418. Its totient is φ = 58061520.
The previous prime is 72576913. The next prime is 72576953. The reversal of 72576925 is 52967527.
It can be written as a sum of positive squares in 3 ways, for example, as 37636 + 72539289 = 194^2 + 8517^2 .
It is not a de Polignac number, because 72576925 - 211 = 72574877 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1451514 + ... + 1451563.
Almost surely, 272576925 is an apocalyptic number.
It is an amenable number.
72576925 is a deficient number, since it is larger than the sum of its proper divisors (17418493).
72576925 is a wasteful number, since it uses less digits than its factorization.
72576925 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2903087 (or 2903082 counting only the distinct ones).
The product of its digits is 264600, while the sum is 43.
The square root of 72576925 is about 8519.2091769131. The cubic root of 72576925 is about 417.1249694934.
The spelling of 72576925 in words is "seventy-two million, five hundred seventy-six thousand, nine hundred twenty-five".
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