Base | Representation |
---|---|
bin | 101111111111… |
… | …110011001010 |
3 | 212200020101100 |
4 | 233333303022 |
5 | 11210111330 |
6 | 1125402230 |
7 | 211642323 |
oct | 57776312 |
9 | 25606340 |
10 | 12582090 |
11 | 7114124 |
12 | 4269376 |
13 | 27b6c31 |
14 | 195744a |
15 | 1188060 |
hex | bffcca |
12582090 has 24 divisors (see below), whose sum is σ = 32713668. Its totient is φ = 3355200.
The previous prime is 12582083. The next prime is 12582103. The reversal of 12582090 is 9028521.
It can be written as a sum of positive squares in 2 ways, for example, as 12552849 + 29241 = 3543^2 + 171^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69811 + ... + 69990.
Almost surely, 212582090 is an apocalyptic number.
12582090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12582090 is an abundant number, since it is smaller than the sum of its proper divisors (20131578).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12582090 is a wasteful number, since it uses less digits than its factorization.
12582090 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 139814 (or 139811 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 27.
The square root of 12582090 is about 3547.1241872819. The cubic root of 12582090 is about 232.5863709626.
It can be divided in two parts, 125 and 82090, that added together give a triangular number (82215 = T405).
The spelling of 12582090 in words is "twelve million, five hundred eighty-two thousand, ninety".
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