Base | Representation |
---|---|
bin | 1001100011010… |
… | …01111110000001 |
3 | 12120202210222011 |
4 | 10301221332001 |
5 | 131003011300 |
6 | 11541212521 |
7 | 1662025663 |
oct | 461517601 |
9 | 176683864 |
10 | 80125825 |
11 | 4125779a |
12 | 22a01141 |
13 | 137a5740 |
14 | a8da533 |
15 | 707aeba |
hex | 4c69f81 |
80125825 has 24 divisors (see below), whose sum is σ = 108102456. Its totient is φ = 58560000.
The previous prime is 80125817. The next prime is 80125861. The reversal of 80125825 is 52852108.
It can be written as a sum of positive squares in 12 ways, for example, as 31013761 + 49112064 = 5569^2 + 7008^2 .
It is not a de Polignac number, because 80125825 - 23 = 80125817 is a prime.
It is a Duffinian number.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 31605 + ... + 34045.
It is an arithmetic number, because the mean of its divisors is an integer number (4504269).
Almost surely, 280125825 is an apocalyptic number.
It is an amenable number.
80125825 is a deficient number, since it is larger than the sum of its proper divisors (27976631).
80125825 is a wasteful number, since it uses less digits than its factorization.
80125825 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2565 (or 2560 counting only the distinct ones).
The product of its (nonzero) digits is 6400, while the sum is 31.
The square root of 80125825 is about 8951.3029777793. The cubic root of 80125825 is about 431.1127211303.
The spelling of 80125825 in words is "eighty million, one hundred twenty-five thousand, eight hundred twenty-five".
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