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12343290 = 235411443
BaseRepresentation
bin101111000101…
…011111111010
3212020002210220
4233011133322
511124441130
61120320510
7206626161
oct57053772
925202726
1012343290
116a70773
124173136
13273232b
1418d43d8
15113c410
hexbc57fa

12343290 has 16 divisors (see below), whose sum is σ = 29623968. Its totient is φ = 3291536.

The previous prime is 12343283. The next prime is 12343291. The reversal of 12343290 is 9234321.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12343290.

It is not an unprimeable number, because it can be changed into a prime (12343291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205692 + ... + 205751.

It is an arithmetic number, because the mean of its divisors is an integer number (1851498).

Almost surely, 212343290 is an apocalyptic number.

12343290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12343290 is an abundant number, since it is smaller than the sum of its proper divisors (17280678).

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

12343290 is a wasteful number, since it uses less digits than its factorization.

12343290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411453.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 12343290 is about 3513.3018657667. The cubic root of 12343290 is about 231.1055157840.

The spelling of 12343290 in words is "twelve million, three hundred forty-three thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 411443 822886 1234329 2057215 2468658 4114430 6171645 12343290