Base | Representation |
---|---|
bin | 1001100101011… |
… | …11101110000101 |
3 | 12121022022212122 |
4 | 10302233232011 |
5 | 131041132100 |
6 | 11551255325 |
7 | 1664325635 |
oct | 462575605 |
9 | 177268778 |
10 | 80411525 |
11 | 41432407 |
12 | 22b1a545 |
13 | 138757ac |
14 | a9726c5 |
15 | 70d5985 |
hex | 4cafb85 |
80411525 has 12 divisors (see below), whose sum is σ = 99940032. Its totient is φ = 64181040.
The previous prime is 80411521. The next prime is 80411531. The reversal of 80411525 is 52511408.
It is not a de Polignac number, because 80411525 - 22 = 80411521 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 = 80411494 and 80411503.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80411521) 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, 8102 + ... + 15048.
It is an arithmetic number, because the mean of its divisors is an integer number (8328336).
Almost surely, 280411525 is an apocalyptic number.
It is an amenable number.
80411525 is a deficient number, since it is larger than the sum of its proper divisors (19528507).
80411525 is a wasteful number, since it uses less digits than its factorization.
80411525 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7420 (or 7415 counting only the distinct ones).
The product of its (nonzero) digits is 1600, while the sum is 26.
The square root of 80411525 is about 8967.2473479881. The cubic root of 80411525 is about 431.6245111874.
The spelling of 80411525 in words is "eighty million, four hundred eleven thousand, five hundred twenty-five".
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