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12468390 = 2351137783
BaseRepresentation
bin101111100100…
…000010100110
3212110110102020
4233210002212
511142442030
61123124010
7210656664
oct57440246
925413366
1012468390
117046760
124213606
13277725c
141927c34
151164510
hexbe40a6

12468390 has 32 divisors (see below), whose sum is σ = 32645376. Its totient is φ = 3022560.

The previous prime is 12468383. The next prime is 12468397. The reversal of 12468390 is 9386421.

It is an interprime number because it is at equal distance from previous prime (12468383) and next prime (12468397).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12468397) 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 15 ways as a sum of consecutive naturals, for example, 18562 + ... + 19221.

It is an arithmetic number, because the mean of its divisors is an integer number (1020168).

Almost surely, 212468390 is an apocalyptic number.

12468390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12468390 is an abundant number, since it is smaller than the sum of its proper divisors (20176986).

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

12468390 is a wasteful number, since it uses less digits than its factorization.

12468390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37804.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 12468390 is about 3531.0607471410. The cubic root of 12468390 is about 231.8836490503.

The spelling of 12468390 in words is "twelve million, four hundred sixty-eight thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 37783 75566 113349 188915 226698 377830 415613 566745 831226 1133490 1246839 2078065 2493678 4156130 6234195 12468390