Base | Representation |
---|---|
bin | 1000101001100… |
… | …00001000010000 |
3 | 12001111212100120 |
4 | 10110300020100 |
5 | 122033031010 |
6 | 11110550240 |
7 | 1540440525 |
oct | 424601020 |
9 | 161455316 |
10 | 72548880 |
11 | 37a52058 |
12 | 20368380 |
13 | 12051a41 |
14 | 98c714c |
15 | 6580e70 |
hex | 4530210 |
72548880 has 40 divisors (see below), whose sum is σ = 224902272. Its totient is φ = 19346304.
The previous prime is 72548863. The next prime is 72548887. The reversal of 72548880 is 8884527.
It is a tau number, because it is divible by the number of its divisors (40).
It is not an unprimeable number, because it can be changed into a prime (72548887) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150904 + ... + 151383.
Almost surely, 272548880 is an apocalyptic number.
It is an amenable number.
72548880 is an abundant number, since it is smaller than the sum of its proper divisors (152353392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72548880 is a wasteful number, since it uses less digits than its factorization.
72548880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 302303 (or 302297 counting only the distinct ones).
The product of its (nonzero) digits is 143360, while the sum is 42.
The square root of 72548880 is about 8517.5630317597. The cubic root of 72548880 is about 417.0712344305.
The spelling of 72548880 in words is "seventy-two million, five hundred forty-eight thousand, eight hundred eighty".
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