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12142974 = 232023829
BaseRepresentation
bin101110010100…
…100101111110
3211211221000210
4232110211332
511102033344
61112133250
7205133154
oct56244576
924757023
1012142974
116944218
124097226
1326920bc
1418813d4
1510ecdb9
hexb9497e

12142974 has 8 divisors (see below), whose sum is σ = 24285960. Its totient is φ = 4047656.

The previous prime is 12142969. The next prime is 12142997. The reversal of 12142974 is 47924121.

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

12142974 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, 1011909 + ... + 1011920.

It is an arithmetic number, because the mean of its divisors is an integer number (3035745).

Almost surely, 212142974 is an apocalyptic number.

12142974 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.

12142974 is a wasteful number, since it uses less digits than its factorization.

12142974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023834.

The product of its digits is 4032, while the sum is 30.

The square root of 12142974 is about 3484.6770295108. The cubic root of 12142974 is about 229.8485076750.

The spelling of 12142974 in words is "twelve million, one hundred forty-two thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 2023829 4047658 6071487 12142974