Base | Representation |
---|---|
bin | 1000100110000… |
… | …01100010001001 |
3 | 12000122211221211 |
4 | 10103001202021 |
5 | 121424032011 |
6 | 11053133121 |
7 | 1533543034 |
oct | 423014211 |
9 | 160584854 |
10 | 72095881 |
11 | 37772780 |
12 | 2018a1a1 |
13 | 11c237b0 |
14 | 980a01b |
15 | 64e1b21 |
hex | 44c1889 |
72095881 has 16 divisors (see below), whose sum is σ = 85111488. Its totient is φ = 60206400.
The previous prime is 72095879. The next prime is 72095887. The reversal of 72095881 is 18859027.
It is a cyclic number.
It is not a de Polignac number, because 72095881 - 21 = 72095879 is a prime.
It is a super-2 number, since 2×720958812 = 10395632114332322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (72095887) 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, 31351 + ... + 33571.
It is an arithmetic number, because the mean of its divisors is an integer number (5319468).
Almost surely, 272095881 is an apocalyptic number.
It is an amenable number.
72095881 is a deficient number, since it is larger than the sum of its proper divisors (13015607).
72095881 is a wasteful number, since it uses less digits than its factorization.
72095881 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2472.
The product of its (nonzero) digits is 40320, while the sum is 40.
The square root of 72095881 is about 8490.9293366510. The cubic root of 72095881 is about 416.2013498438.
The spelling of 72095881 in words is "seventy-two million, ninety-five thousand, eight hundred eighty-one".
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