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12112152 = 2331338821
BaseRepresentation
bin101110001101…
…000100011000
3211210100202020
4232031010120
511100042102
61111334440
7204644253
oct56150430
924710666
1012112152
116923048
124081420
132681070
14187409a
1510e3bbc
hexb8d118

12112152 has 32 divisors (see below), whose sum is σ = 32610480. Its totient is φ = 3726720.

The previous prime is 12112127. The next prime is 12112159. The reversal of 12112152 is 25121121.

It is a super-2 number, since 2×121121522 = 293408452142208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112159) 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, 19099 + ... + 19722.

Almost surely, 212112152 is an apocalyptic number.

12112152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12112152 is an abundant number, since it is smaller than the sum of its proper divisors (20498328).

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

12112152 is a wasteful number, since it uses less digits than its factorization.

12112152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38843 (or 38839 counting only the distinct ones).

The product of its digits is 40, while the sum is 15.

The square root of 12112152 is about 3480.2517150344. The cubic root of 12112152 is about 229.6538713041.

Adding to 12112152 its reverse (25121121), we get a palindrome (37233273).

The spelling of 12112152 in words is "twelve million, one hundred twelve thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 38821 77642 116463 155284 232926 310568 465852 504673 931704 1009346 1514019 2018692 3028038 4037384 6056076 12112152