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12960111 = 322719031
BaseRepresentation
bin110001011100…
…000101101111
3220101102221010
4301130011233
511304210421
61141440303
7215105403
oct61340557
926342833
1012960111
11735213a
124410093
1328ba008
141a15103
151210076
hexc5c16f

12960111 has 8 divisors (see below), whose sum is σ = 17357184. Its totient is φ = 8601560.

The previous prime is 12960097. The next prime is 12960119. The reversal of 12960111 is 11106921.

12960111 = T218 + T219 + ... + T444.

12960111 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 12960111 - 26 = 12960047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12960119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8835 + ... + 10196.

It is an arithmetic number, because the mean of its divisors is an integer number (2169648).

Almost surely, 212960111 is an apocalyptic number.

12960111 is a deficient number, since it is larger than the sum of its proper divisors (4397073).

12960111 is a wasteful number, since it uses less digits than its factorization.

12960111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19261.

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 12960111 is about 3600.0154166337. The cubic root of 12960111 is about 234.8927290705.

The spelling of 12960111 in words is "twelve million, nine hundred sixty thousand, one hundred eleven".

Divisors: 1 3 227 681 19031 57093 4320037 12960111