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12111080 = 235319767
BaseRepresentation
bin101110001100…
…110011101000
3211210022021112
4232030303220
511100023310
61111325452
7204641162
oct56146350
924708245
1012111080
116922263
124080888
132680727
141873932
1510e3705
hexb8cce8

12111080 has 32 divisors (see below), whose sum is σ = 28131840. Its totient is φ = 4687680.

The previous prime is 12111061. The next prime is 12111091. The reversal of 12111080 is 8011121.

12111080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3644 + ... + 6123.

It is an arithmetic number, because the mean of its divisors is an integer number (879120).

Almost surely, 212111080 is an apocalyptic number.

12111080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111080 is an abundant number, since it is smaller than the sum of its proper divisors (16020760).

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

12111080 is a wasteful number, since it uses less digits than its factorization.

12111080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9809 (or 9805 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 12111080 is about 3480.0976997780. The cubic root of 12111080 is about 229.6470958439.

The spelling of 12111080 in words is "twelve million, one hundred eleven thousand, eighty".

Divisors: 1 2 4 5 8 10 20 31 40 62 124 155 248 310 620 1240 9767 19534 39068 48835 78136 97670 195340 302777 390680 605554 1211108 1513885 2422216 3027770 6055540 12111080