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12490854 = 232081809
BaseRepresentation
bin101111101001…
…100001100110
3212111121020020
4233221201212
511144201404
61123420010
7211112325
oct57514146
925447206
1012490854
117061622
124224606
13278454c
1419320bc
15116aed9
hexbe9866

12490854 has 8 divisors (see below), whose sum is σ = 24981720. Its totient is φ = 4163616.

The previous prime is 12490837. The next prime is 12490873. The reversal of 12490854 is 45809421.

It is a sphenic number, since it is the product of 3 distinct primes.

12490854 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1040899 + ... + 1040910.

It is an arithmetic number, because the mean of its divisors is an integer number (3122715).

Almost surely, 212490854 is an apocalyptic number.

12490854 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12490854 is a wasteful number, since it uses less digits than its factorization.

12490854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081814.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 12490854 is about 3534.2402295260. The cubic root of 12490854 is about 232.0228252414.

The spelling of 12490854 in words is "twelve million, four hundred ninety thousand, eight hundred fifty-four".

Divisors: 1 2 3 6 2081809 4163618 6245427 12490854