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112668121 = 1039108439
BaseRepresentation
bin1101011011100…
…10110111011001
321212000010121101
412231302313121
5212320334441
615102511401
72535443326
oct655626731
9255003541
10112668121
1158664255
1231895561
131a45a937
1410d6bb4d
159d58231
hex6b72dd9

112668121 has 4 divisors (see below), whose sum is σ = 112777600. Its totient is φ = 112558644.

The previous prime is 112668109. The next prime is 112668131. The reversal of 112668121 is 121866211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112668121 - 217 = 112537049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112668121.

It is not an unprimeable number, because it can be changed into a prime (112668131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53181 + ... + 55258.

It is an arithmetic number, because the mean of its divisors is an integer number (28194400).

Almost surely, 2112668121 is an apocalyptic number.

It is an amenable number.

112668121 is a deficient number, since it is larger than the sum of its proper divisors (109479).

112668121 is a wasteful number, since it uses less digits than its factorization.

112668121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109478.

The product of its digits is 1152, while the sum is 28.

The square root of 112668121 is about 10614.5240590429. The cubic root of 112668121 is about 482.9850452671.

The spelling of 112668121 in words is "one hundred twelve million, six hundred sixty-eight thousand, one hundred twenty-one".

Divisors: 1 1039 108439 112668121