Base | Representation |
---|---|
bin | 1001100101101… |
… | …00100011011101 |
3 | 12121100100000222 |
4 | 10302310203131 |
5 | 131042300300 |
6 | 11551531125 |
7 | 1664440442 |
oct | 462644335 |
9 | 177310028 |
10 | 80431325 |
11 | 41446277 |
12 | 22b29aa5 |
13 | 13881800 |
14 | a9799c9 |
15 | 70db785 |
hex | 4cb48dd |
80431325 has 18 divisors (see below), whose sum is σ = 108002574. Its totient is φ = 59392320.
The previous prime is 80431283. The next prime is 80431331. The reversal of 80431325 is 52313408.
It can be written as a sum of positive squares in 9 ways, for example, as 73908409 + 6522916 = 8597^2 + 2554^2 .
It is not a de Polignac number, because 80431325 - 26 = 80431261 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 80431294 and 80431303.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5294 + ... + 13743.
It is an arithmetic number, because the mean of its divisors is an integer number (6000143).
Almost surely, 280431325 is an apocalyptic number.
It is an amenable number.
80431325 is a deficient number, since it is larger than the sum of its proper divisors (27571249).
80431325 is a wasteful number, since it uses less digits than its factorization.
80431325 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19073 (or 19055 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 26.
The square root of 80431325 is about 8968.3512977581. The cubic root of 80431325 is about 431.6599350646.
The spelling of 80431325 in words is "eighty million, four hundred thirty-one thousand, three hundred twenty-five".
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