Base | Representation |
---|---|
bin | 1001100010101… |
… | …00101010000001 |
3 | 12120121101012222 |
4 | 10301110222001 |
5 | 130442213104 |
6 | 11535300425 |
7 | 1661213324 |
oct | 461245201 |
9 | 176541188 |
10 | 80038529 |
11 | 411a814a |
12 | 2297a715 |
13 | 13774a9c |
14 | a8b67bb |
15 | 70601be |
hex | 4c54a81 |
80038529 has 8 divisors (see below), whose sum is σ = 80744040. Its totient is φ = 79336576.
The previous prime is 80038493. The next prime is 80038531. The reversal of 80038529 is 92583008.
It can be written as a sum of positive squares in 4 ways, for example, as 204304 + 79834225 = 452^2 + 8935^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80038529 - 212 = 80034433 is a prime.
It is a super-2 number, since 2×800385292 = 12812332248967682, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (80038549) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62039 + ... + 63315.
It is an arithmetic number, because the mean of its divisors is an integer number (10093005).
Almost surely, 280038529 is an apocalyptic number.
It is an amenable number.
80038529 is a deficient number, since it is larger than the sum of its proper divisors (705511).
80038529 is a wasteful number, since it uses less digits than its factorization.
80038529 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1779.
The product of its (nonzero) digits is 17280, while the sum is 35.
The square root of 80038529 is about 8946.4254873106. The cubic root of 80038529 is about 430.9561004162.
The spelling of 80038529 in words is "eighty million, thirty-eight thousand, five hundred twenty-nine".
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