Base | Representation |
---|---|
bin | 1000100111000… |
… | …10011010101111 |
3 | 12000220200201111 |
4 | 10103202122233 |
5 | 121442334300 |
6 | 11100052451 |
7 | 1534643524 |
oct | 423423257 |
9 | 160820644 |
10 | 72230575 |
11 | 3785499a |
12 | 20234127 |
13 | 11c6cbb1 |
14 | 984314b |
15 | 651b9ba |
hex | 44e26af |
72230575 has 12 divisors (see below), whose sum is σ = 89996968. Its totient is φ = 57506400.
The previous prime is 72230563. The next prime is 72230579. The reversal of 72230575 is 57503227.
It is not a de Polignac number, because 72230575 - 27 = 72230447 is a prime.
It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72230579) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1572 + ... + 12121.
Almost surely, 272230575 is an apocalyptic number.
72230575 is a deficient number, since it is larger than the sum of its proper divisors (17766393).
72230575 is a wasteful number, since it uses less digits than its factorization.
72230575 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13914 (or 13909 counting only the distinct ones).
The product of its (nonzero) digits is 14700, while the sum is 31.
The square root of 72230575 is about 8498.8572761284. The cubic root of 72230575 is about 416.4603796642.
The spelling of 72230575 in words is "seventy-two million, two hundred thirty thousand, five hundred seventy-five".
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