Base | Representation |
---|---|
bin | 110001000111… |
… | …001101010100 |
3 | 220020002121022 |
4 | 301013031110 |
5 | 11243441310 |
6 | 1135540312 |
7 | 214301135 |
oct | 61071524 |
9 | 26202538 |
10 | 12874580 |
11 | 72a3954 |
12 | 438a698 |
13 | 288a0c4 |
14 | 19d1c8c |
15 | 11e4a55 |
hex | c47354 |
12874580 has 12 divisors (see below), whose sum is σ = 27036660. Its totient is φ = 5149824.
The previous prime is 12874573. The next prime is 12874583. The reversal of 12874580 is 8547821.
It can be written as a sum of positive squares in 2 ways, for example, as 7333264 + 5541316 = 2708^2 + 2354^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 12874580.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12874583) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321845 + ... + 321884.
It is an arithmetic number, because the mean of its divisors is an integer number (2253055).
Almost surely, 212874580 is an apocalyptic number.
12874580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12874580 is an abundant number, since it is smaller than the sum of its proper divisors (14162080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12874580 is a wasteful number, since it uses less digits than its factorization.
12874580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 643738 (or 643736 counting only the distinct ones).
The product of its (nonzero) digits is 17920, while the sum is 35.
The square root of 12874580 is about 3588.1164975513. The cubic root of 12874580 is about 234.3748587851.
The spelling of 12874580 in words is "twelve million, eight hundred seventy-four thousand, five hundred eighty".
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