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12900894 = 232150149
BaseRepresentation
bin110001001101…
…101000011110
3220021102200220
4301031220132
511300312034
61140302210
7214440636
oct61155036
926242626
1012900894
1173116a6
1243a1966
132899086
1419db6c6
1511ec749
hexc4da1e

12900894 has 8 divisors (see below), whose sum is σ = 25801800. Its totient is φ = 4300296.

The previous prime is 12900887. The next prime is 12900931. The reversal of 12900894 is 49800921.

12900894 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

12900894 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1075069 + ... + 1075080.

It is an arithmetic number, because the mean of its divisors is an integer number (3225225).

Almost surely, 212900894 is an apocalyptic number.

12900894 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.

12900894 is a wasteful number, since it uses less digits than its factorization.

12900894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2150154.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12900894 is about 3591.7814521488. The cubic root of 12900894 is about 234.5344275645.

The spelling of 12900894 in words is "twelve million, nine hundred thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 2150149 4300298 6450447 12900894