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12299881 = 1110111071
BaseRepresentation
bin101110111010…
…111001101001
3212010220021011
4232322321221
511122044011
61115343521
7206355466
oct56727151
925126234
1012299881
116a410a0
124151ba1
132718649
1418c266d
15112e621
hexbbae69

12299881 has 8 divisors (see below), whose sum is σ = 13552128. Its totient is φ = 11070000.

The previous prime is 12299879. The next prime is 12299893. The reversal of 12299881 is 18899221.

12299881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12299881 - 21 = 12299879 is a prime.

It is a super-2 number, since 2×122998812 = 302574145228322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12299681) 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, 4425 + ... + 6646.

It is an arithmetic number, because the mean of its divisors is an integer number (1694016).

Almost surely, 212299881 is an apocalyptic number.

12299881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12299881 is a deficient number, since it is larger than the sum of its proper divisors (1252247).

12299881 is a wasteful number, since it uses less digits than its factorization.

12299881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11183.

The product of its digits is 20736, while the sum is 40.

The square root of 12299881 is about 3507.1186178970. The cubic root of 12299881 is about 230.8342795456.

The spelling of 12299881 in words is "twelve million, two hundred ninety-nine thousand, eight hundred eighty-one".

Divisors: 1 11 101 1111 11071 121781 1118171 12299881