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12213374 = 213943933
BaseRepresentation
bin101110100101…
…110001111110
3211222111121012
4232211301332
511111311444
61113435222
7205545335
oct56456176
924874535
1012213374
1169920a8
12410bb12
1326b8164
14189cd1c
151113b9e
hexba5c7e

12213374 has 8 divisors (see below), whose sum is σ = 18452280. Its totient is φ = 6062616.

The previous prime is 12213353. The next prime is 12213401. The reversal of 12213374 is 47331221.

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

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, 21689 + ... + 22244.

It is an arithmetic number, because the mean of its divisors is an integer number (2306535).

Almost surely, 212213374 is an apocalyptic number.

12213374 is a deficient number, since it is larger than the sum of its proper divisors (6238906).

12213374 is a wasteful number, since it uses less digits than its factorization.

12213374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44074.

The product of its digits is 1008, while the sum is 23.

The square root of 12213374 is about 3494.7637974547. The cubic root of 12213374 is about 230.2918412535.

Adding to 12213374 its reverse (47331221), we get a palindrome (59544595).

The spelling of 12213374 in words is "twelve million, two hundred thirteen thousand, three hundred seventy-four".

Divisors: 1 2 139 278 43933 87866 6106687 12213374