Base | Representation |
---|---|
bin | 1001100111100… |
… | …01010001010111 |
3 | 12121210222012000 |
4 | 10303301101113 |
5 | 131123230043 |
6 | 12001130343 |
7 | 1666524504 |
oct | 463612127 |
9 | 177728160 |
10 | 80680023 |
11 | 415a6106 |
12 | 230299b3 |
13 | 1393aa78 |
14 | aa024ab |
15 | 713a2d3 |
hex | 4cf1457 |
80680023 has 16 divisors (see below), whose sum is σ = 125817600. Its totient is φ = 50955480.
The previous prime is 80680009. The next prime is 80680031. The reversal of 80680023 is 32008608.
It is not a de Polignac number, because 80680023 - 24 = 80680007 is a prime.
It is a super-2 number, since 2×806800232 = 13018532222561058, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80680123) 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, 78123 + ... + 79148.
It is an arithmetic number, because the mean of its divisors is an integer number (7863600).
Almost surely, 280680023 is an apocalyptic number.
80680023 is a deficient number, since it is larger than the sum of its proper divisors (45137577).
80680023 is a wasteful number, since it uses less digits than its factorization.
80680023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 157299 (or 157293 counting only the distinct ones).
The product of its (nonzero) digits is 2304, while the sum is 27.
The square root of 80680023 is about 8982.2059094634. The cubic root of 80680023 is about 432.1043825696.
The spelling of 80680023 in words is "eighty million, six hundred eighty thousand, twenty-three".
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