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12386668038 = 234733436181
BaseRepresentation
bin10111000100100110…
…11000111000000110
31011222020200221011220
423202103120320012
5200331441334123
65405041141210
7615644640543
oct134223307006
934866627156
1012386668038
115286a51038
12249832a806
1312252b8a94
14857111bca
154c769dce3
hex2e24d8e06

12386668038 has 16 divisors (see below), whose sum is σ = 24778627056. Its totient is φ = 4128007520.

The previous prime is 12386668033. The next prime is 12386668069. The reversal of 12386668038 is 83086668321.

It is a super-2 number, since 2×123866680382 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12386668033) 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, 189693 + ... + 246488.

It is an arithmetic number, because the mean of its divisors is an integer number (1548664191).

Almost surely, 212386668038 is an apocalyptic number.

12386668038 is an abundant number, since it is smaller than the sum of its proper divisors (12391959018).

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

12386668038 is a wasteful number, since it uses less digits than its factorization.

12386668038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440919.

The product of its (nonzero) digits is 1990656, while the sum is 51.

The spelling of 12386668038 in words is "twelve billion, three hundred eighty-six million, six hundred sixty-eight thousand, thirty-eight".

Divisors: 1 2 3 6 4733 9466 14199 28398 436181 872362 1308543 2617086 2064444673 4128889346 6193334019 12386668038