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12092240 = 245151153
BaseRepresentation
bin101110001000…
…001101010000
3211202100102202
4232020031100
511043422430
61111102332
7204532226
oct56101520
924670382
1012092240
11690a096
1240719a8
132674c94
14186ab16
1510dcd45
hexb88350

12092240 has 20 divisors (see below), whose sum is σ = 28114644. Its totient is φ = 4836864.

The previous prime is 12092239. The next prime is 12092279. The reversal of 12092240 is 4229021.

12092240 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in 2 ways, for example, as 6370576 + 5721664 = 2524^2 + 2392^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75497 + ... + 75656.

Almost surely, 212092240 is an apocalyptic number.

12092240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12092240 is an abundant number, since it is smaller than the sum of its proper divisors (16022404).

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

12092240 is a wasteful number, since it uses less digits than its factorization.

12092240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151166 (or 151160 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 12092240 is about 3477.3898257170. The cubic root of 12092240 is about 229.5279543446.

The spelling of 12092240 in words is "twelve million, ninety-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 151153 302306 604612 755765 1209224 1511530 2418448 3023060 6046120 12092240