Base | Representation |
---|---|
bin | 101111101001… |
… | …100000111010 |
3 | 212111121011121 |
4 | 233221200322 |
5 | 11144201220 |
6 | 1123415454 |
7 | 211112233 |
oct | 57514072 |
9 | 25447147 |
10 | 12490810 |
11 | 7061592 |
12 | 422458a |
13 | 2784517 |
14 | 193208a |
15 | 116aeaa |
hex | be983a |
12490810 has 32 divisors (see below), whose sum is σ = 23167872. Its totient is φ = 4847040.
The previous prime is 12490783. The next prime is 12490813. The reversal of 12490810 is 1809421.
It is a happy number.
It is a super-2 number, since 2×124908102 = 312040668912200, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12490813) 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 15 ways as a sum of consecutive naturals, for example, 68920 + ... + 69100.
It is an arithmetic number, because the mean of its divisors is an integer number (723996).
Almost surely, 212490810 is an apocalyptic number.
12490810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12490810 is a deficient number, since it is larger than the sum of its proper divisors (10677062).
12490810 is a wasteful number, since it uses less digits than its factorization.
12490810 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 358.
The product of its (nonzero) digits is 576, while the sum is 25.
The square root of 12490810 is about 3534.2340047031. The cubic root of 12490810 is about 232.0225528016.
The spelling of 12490810 in words is "twelve million, four hundred ninety thousand, eight hundred ten".
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