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12210874 = 213469649
BaseRepresentation
bin101110100101…
…001010111010
3211222101011121
4232211022322
511111221444
61113415454
7205535134
oct56451272
924871147
1012210874
116990235
12410a58a
1326b6c90
14189c054
151113084
hexba52ba

12210874 has 8 divisors (see below), whose sum is σ = 19725300. Its totient is φ = 5635776.

The previous prime is 12210871. The next prime is 12210881. The reversal of 12210874 is 47801221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11730625 + 480249 = 3425^2 + 693^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12210871) 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 3 ways as a sum of consecutive naturals, for example, 234799 + ... + 234850.

Almost surely, 212210874 is an apocalyptic number.

12210874 is a deficient number, since it is larger than the sum of its proper divisors (7514426).

12210874 is a wasteful number, since it uses less digits than its factorization.

12210874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469664.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 12210874 is about 3494.4061011851. The cubic root of 12210874 is about 230.2761270894.

The spelling of 12210874 in words is "twelve million, two hundred ten thousand, eight hundred seventy-four".

Divisors: 1 2 13 26 469649 939298 6105437 12210874