Base | Representation |
---|---|
bin | 1000101100000… |
… | …01001010100011 |
3 | 12002010201200000 |
4 | 10112001022203 |
5 | 122124141203 |
6 | 11122031043 |
7 | 1543322322 |
oct | 426011243 |
9 | 162121600 |
10 | 72880803 |
11 | 38159476 |
12 | 204a8483 |
13 | 12139b48 |
14 | 99720b9 |
15 | 65e94a3 |
hex | 45812a3 |
72880803 has 24 divisors (see below), whose sum is σ = 110230848. Its totient is φ = 48115944.
The previous prime is 72880793. The next prime is 72880811. The reversal of 72880803 is 30808827.
It is not a de Polignac number, because 72880803 - 212 = 72876707 is a prime.
It is a super-2 number, since 2×728808032 = 10623222891849618, which contains 22 as substring.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (72880403) 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, 24600 + ... + 27402.
It is an arithmetic number, because the mean of its divisors is an integer number (4592952).
Almost surely, 272880803 is an apocalyptic number.
72880803 is a deficient number, since it is larger than the sum of its proper divisors (37350045).
72880803 is a wasteful number, since it uses less digits than its factorization.
72880803 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2925 (or 2913 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 36.
The square root of 72880803 is about 8537.0254187275. The cubic root of 72880803 is about 417.7063232542.
The spelling of 72880803 in words is "seventy-two million, eight hundred eighty thousand, eight hundred three".
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