Base | Representation |
---|---|
bin | 1001101000111… |
… | …11000010011001 |
3 | 12122011111022220 |
4 | 10310133002121 |
5 | 131200224411 |
6 | 12005134253 |
7 | 2001235152 |
oct | 464370231 |
9 | 178144286 |
10 | 80867481 |
11 | 41713a32 |
12 | 230ba389 |
13 | 139a51a6 |
14 | aa50929 |
15 | 7175b06 |
hex | 4d1f099 |
80867481 has 16 divisors (see below), whose sum is σ = 110530560. Its totient is φ = 52575120.
The previous prime is 80867473. The next prime is 80867489. The reversal of 80867481 is 18476808.
It is an interprime number because it is at equal distance from previous prime (80867473) and next prime (80867489).
It is not a de Polignac number, because 80867481 - 23 = 80867473 is a prime.
It is a super-2 number, since 2×808674812 = 13079098966570722, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (80867489) 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 15 ways as a sum of consecutive naturals, for example, 17616 + ... + 21726.
It is an arithmetic number, because the mean of its divisors is an integer number (6908160).
Almost surely, 280867481 is an apocalyptic number.
It is an amenable number.
80867481 is a deficient number, since it is larger than the sum of its proper divisors (29663079).
80867481 is a wasteful number, since it uses less digits than its factorization.
80867481 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4276.
The product of its (nonzero) digits is 86016, while the sum is 42.
The square root of 80867481 is about 8992.6348196733. The cubic root of 80867481 is about 432.4387849254.
The spelling of 80867481 in words is "eighty million, eight hundred sixty-seven thousand, four hundred eighty-one".
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