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12091960 = 235302299
BaseRepresentation
bin101110001000…
…001000111000
3211202100001101
4232020020320
511043420320
61111101144
7204531346
oct56101070
924670041
1012091960
116909961
1240717b4
132674b0a
14186a996
1510dcc0a
hexb88238

12091960 has 16 divisors (see below), whose sum is σ = 27207000. Its totient is φ = 4836768.

The previous prime is 12091957. The next prime is 12091967. The reversal of 12091960 is 6919021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12091967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151110 + ... + 151189.

Almost surely, 212091960 is an apocalyptic number.

12091960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12091960 is an abundant number, since it is smaller than the sum of its proper divisors (15115040).

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

12091960 is a wasteful number, since it uses less digits than its factorization.

12091960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302310 (or 302306 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 12091960 is about 3477.3495654018. The cubic root of 12091960 is about 229.5261827312.

The spelling of 12091960 in words is "twelve million, ninety-one thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 302299 604598 1209196 1511495 2418392 3022990 6045980 12091960