Base | Representation |
---|---|
bin | 1000101011011… |
… | …00010110000101 |
3 | 12001222101200120 |
4 | 10111230112011 |
5 | 122113424100 |
6 | 11120132153 |
7 | 1542515565 |
oct | 425542605 |
9 | 161871616 |
10 | 72795525 |
11 | 381003a0 |
12 | 20467059 |
13 | 1210a09a |
14 | 994cda5 |
15 | 65ce0a0 |
hex | 456c585 |
72795525 has 24 divisors (see below), whose sum is σ = 131298144. Its totient is φ = 35294400.
The previous prime is 72795523. The next prime is 72795571. The reversal of 72795525 is 52559727.
It is a happy number.
It is not a de Polignac number, because 72795525 - 21 = 72795523 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72795523) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43294 + ... + 44943.
It is an arithmetic number, because the mean of its divisors is an integer number (5470756).
Almost surely, 272795525 is an apocalyptic number.
72795525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.
It is an amenable number.
72795525 is a deficient number, since it is larger than the sum of its proper divisors (58502619).
72795525 is a wasteful number, since it uses less digits than its factorization.
72795525 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 88261 (or 88256 counting only the distinct ones).
The product of its digits is 220500, while the sum is 42.
The square root of 72795525 is about 8532.0293600057. The cubic root of 72795525 is about 417.5433399496.
It can be divided in two parts, 72 and 795525, that added together give a palindrome (795597).
The spelling of 72795525 in words is "seventy-two million, seven hundred ninety-five thousand, five hundred twenty-five".
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