Base | Representation |
---|---|
bin | 1001101001010… |
… | …11001001010011 |
3 | 12122021000100201 |
4 | 10310223021103 |
5 | 131203321300 |
6 | 12010200031 |
7 | 2001532561 |
oct | 464531123 |
9 | 178230321 |
10 | 80917075 |
11 | 41748218 |
12 | 23123017 |
13 | 139c1935 |
14 | aa64a31 |
15 | 718566a |
hex | 4d2b253 |
80917075 has 6 divisors (see below), whose sum is σ = 100337204. Its totient is φ = 64733640.
The previous prime is 80917063. The next prime is 80917079. The reversal of 80917075 is 57071908.
It is not a de Polignac number, because 80917075 - 217 = 80786003 is a prime.
It is a super-3 number, since 3×809170753 (a number of 25 digits) contains 333 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80917079) 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 5 ways as a sum of consecutive naturals, for example, 1618317 + ... + 1618366.
Almost surely, 280917075 is an apocalyptic number.
80917075 is a deficient number, since it is larger than the sum of its proper divisors (19420129).
80917075 is a wasteful number, since it uses less digits than its factorization.
80917075 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3236693 (or 3236688 counting only the distinct ones).
The product of its (nonzero) digits is 17640, while the sum is 37.
The square root of 80917075 is about 8995.3918758440. The cubic root of 80917075 is about 432.5271681509.
The spelling of 80917075 in words is "eighty million, nine hundred seventeen thousand, seventy-five".
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