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12343938 = 2317121019
BaseRepresentation
bin101111000101…
…101010000010
3212020010200220
4233011222002
511130001223
61120323510
7206631105
oct57055202
925203626
1012343938
116a71202
124173596
132732709
1418d473c
15113c6e3
hexbc5a82

12343938 has 16 divisors (see below), whose sum is σ = 26140320. Its totient is φ = 3872576.

The previous prime is 12343931. The next prime is 12343943. The reversal of 12343938 is 83934321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12343899 and 12343908.

It is not an unprimeable number, because it can be changed into a prime (12343931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60408 + ... + 60611.

It is an arithmetic number, because the mean of its divisors is an integer number (1633770).

Almost surely, 212343938 is an apocalyptic number.

12343938 is an abundant number, since it is smaller than the sum of its proper divisors (13796382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12343938 is a wasteful number, since it uses less digits than its factorization.

12343938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121041.

The product of its digits is 15552, while the sum is 33.

The square root of 12343938 is about 3513.3940854962. The cubic root of 12343938 is about 231.1095599180.

The spelling of 12343938 in words is "twelve million, three hundred forty-three thousand, nine hundred thirty-eight".

Divisors: 1 2 3 6 17 34 51 102 121019 242038 363057 726114 2057323 4114646 6171969 12343938