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12112885 = 543531063
BaseRepresentation
bin101110001101…
…001111110101
3211210101202101
4232031033311
511100103020
61111342101
7204646351
oct56151765
924711671
1012112885
116923654
124081931
1326814b5
141874461
1510e400a
hexb8d3f5

12112885 has 16 divisors (see below), whose sum is σ = 15168384. Its totient is φ = 9277632.

The previous prime is 12112883. The next prime is 12112889. The reversal of 12112885 is 58821121.

It is a cyclic number.

It is not a de Polignac number, because 12112885 - 21 = 12112883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10864 + ... + 11926.

It is an arithmetic number, because the mean of its divisors is an integer number (948024).

Almost surely, 212112885 is an apocalyptic number.

It is an amenable number.

12112885 is a deficient number, since it is larger than the sum of its proper divisors (3055499).

12112885 is a wasteful number, since it uses less digits than its factorization.

12112885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its digits is 1280, while the sum is 28.

The square root of 12112885 is about 3480.3570219160. The cubic root of 12112885 is about 229.6585039214.

It can be divided in two parts, 1211 and 2885, that added together give a 12-th power (4096 = 212).

The spelling of 12112885 in words is "twelve million, one hundred twelve thousand, eight hundred eighty-five".

Divisors: 1 5 43 53 215 265 1063 2279 5315 11395 45709 56339 228545 281695 2422577 12112885