Base | Representation |
---|---|
bin | 1001100110111… |
… | …10110001000001 |
3 | 12121200010012200 |
4 | 10303132301001 |
5 | 131113313400 |
6 | 11555343413 |
7 | 1666060512 |
oct | 463366101 |
9 | 177603180 |
10 | 80604225 |
11 | 41554169 |
12 | 22bb1b69 |
13 | 13912410 |
14 | a9c2a09 |
15 | 7122b00 |
hex | 4cdec41 |
80604225 has 72 divisors (see below), whose sum is σ = 164723832. Its totient is φ = 37324800.
The previous prime is 80604221. The next prime is 80604229. The reversal of 80604225 is 52240608.
It is an interprime number because it is at equal distance from previous prime (80604221) and next prime (80604229).
It can be written as a sum of positive squares in 12 ways, for example, as 14653584 + 65950641 = 3828^2 + 8121^2 .
It is not a de Polignac number, because 80604225 - 22 = 80604221 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80604221) by changing a digit.
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 71 ways as a sum of consecutive naturals, for example, 48915 + ... + 50535.
It is an arithmetic number, because the mean of its divisors is an integer number (2287831).
Almost surely, 280604225 is an apocalyptic number.
80604225 is a gapful number since it is divisible by the number (85) formed by its first and last digit.
It is an amenable number.
80604225 is an abundant number, since it is smaller than the sum of its proper divisors (84119607).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80604225 is a wasteful number, since it uses less digits than its factorization.
80604225 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1667 (or 1659 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 27.
The square root of 80604225 is about 8977.9855758405. The cubic root of 80604225 is about 431.9690210553.
The spelling of 80604225 in words is "eighty million, six hundred four thousand, two hundred twenty-five".
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