Base | Representation |
---|---|
bin | 1001100010100… |
… | …01011100000001 |
3 | 12120120201010200 |
4 | 10301101130001 |
5 | 130441302340 |
6 | 11535115413 |
7 | 1661130021 |
oct | 461213401 |
9 | 176521120 |
10 | 80025345 |
11 | 41199254 |
12 | 22972b69 |
13 | 1376ba9a |
14 | a8b1a81 |
15 | 705b330 |
hex | 4c51701 |
80025345 has 12 divisors (see below), whose sum is σ = 138710676. Its totient is φ = 42680160.
The previous prime is 80025331. The next prime is 80025347. The reversal of 80025345 is 54352008.
It can be written as a sum of positive squares in 2 ways, for example, as 58430736 + 21594609 = 7644^2 + 4647^2 .
It is not a de Polignac number, because 80025345 - 28 = 80025089 is a prime.
It is not an unprimeable number, because it can be changed into a prime (80025347) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 889126 + ... + 889215.
It is an arithmetic number, because the mean of its divisors is an integer number (11559223).
Almost surely, 280025345 is an apocalyptic number.
It is an amenable number.
80025345 is a deficient number, since it is larger than the sum of its proper divisors (58685331).
80025345 is a wasteful number, since it uses less digits than its factorization.
80025345 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1778352 (or 1778349 counting only the distinct ones).
The product of its (nonzero) digits is 4800, while the sum is 27.
The square root of 80025345 is about 8945.6886263719. The cubic root of 80025345 is about 430.9324366579.
The spelling of 80025345 in words is "eighty million, twenty-five thousand, three hundred forty-five".
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