Search a number
-
+
12805698 = 232134283
BaseRepresentation
bin110000110110…
…011001000010
3220002121010010
4300312121002
511234240243
61134245350
7213563253
oct60663102
926077103
1012805698
117257124
124356856
132864949
1419b4b2a
1511ce433
hexc36642

12805698 has 8 divisors (see below), whose sum is σ = 25611408. Its totient is φ = 4268564.

The previous prime is 12805693. The next prime is 12805699. The reversal of 12805698 is 89650821.

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

12805698 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12805691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067136 + ... + 1067147.

It is an arithmetic number, because the mean of its divisors is an integer number (3201426).

Almost surely, 212805698 is an apocalyptic number.

12805698 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.

12805698 is a wasteful number, since it uses less digits than its factorization.

12805698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134288.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 12805698 is about 3578.5049951062. The cubic root of 12805698 is about 233.9561244350.

The spelling of 12805698 in words is "twelve million, eight hundred five thousand, six hundred ninety-eight".

Divisors: 1 2 3 6 2134283 4268566 6402849 12805698