Base | Representation |
---|---|
bin | 1000101011011… |
… | …10101011011011 |
3 | 12001222212210120 |
4 | 10111232223123 |
5 | 122114230313 |
6 | 11120244323 |
7 | 1542555501 |
oct | 425565333 |
9 | 161885716 |
10 | 72805083 |
11 | 3810759a |
12 | 204706a3 |
13 | 12111540 |
14 | 9952671 |
15 | 65d1d23 |
hex | 456eadb |
72805083 has 16 divisors (see below), whose sum is σ = 104727840. Its totient is φ = 44722944.
The previous prime is 72805037. The next prime is 72805087. The reversal of 72805083 is 38050827.
It is not a de Polignac number, because 72805083 - 214 = 72788699 is a prime.
It is a super-2 number, since 2×728050832 = 10601160221273778, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (72805087) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26335 + ... + 28967.
It is an arithmetic number, because the mean of its divisors is an integer number (6545490).
Almost surely, 272805083 is an apocalyptic number.
72805083 is a deficient number, since it is larger than the sum of its proper divisors (31922757).
72805083 is a wasteful number, since it uses less digits than its factorization.
72805083 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3358.
The product of its (nonzero) digits is 13440, while the sum is 33.
The square root of 72805083 is about 8532.5894662758. The cubic root of 72805083 is about 417.5616135298.
The spelling of 72805083 in words is "seventy-two million, eight hundred five thousand, eighty-three".
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