Base | Representation |
---|---|
bin | 1000101100110… |
… | …11010101101000 |
3 | 12002100011201120 |
4 | 10112123111220 |
5 | 122141104013 |
6 | 11124215240 |
7 | 1544250012 |
oct | 426332550 |
9 | 162304646 |
10 | 72988008 |
11 | 38221a75 |
12 | 2053a520 |
13 | 12176892 |
14 | 999d1b2 |
15 | 661b123 |
hex | 459b568 |
72988008 has 32 divisors (see below), whose sum is σ = 183535200. Its totient is φ = 24187328.
The previous prime is 72988001. The next prime is 72988009. The reversal of 72988008 is 80088927.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (72988001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4638 + ... + 12941.
It is an arithmetic number, because the mean of its divisors is an integer number (5735475).
Almost surely, 272988008 is an apocalyptic number.
It is an amenable number.
72988008 is an abundant number, since it is smaller than the sum of its proper divisors (110547192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72988008 is a wasteful number, since it uses less digits than its factorization.
72988008 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17761 (or 17757 counting only the distinct ones).
The product of its (nonzero) digits is 64512, while the sum is 42.
The square root of 72988008 is about 8543.3019377756. The cubic root of 72988008 is about 417.9110331631.
The spelling of 72988008 in words is "seventy-two million, nine hundred eighty-eight thousand, eight".
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