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16242372 = 2232451177
BaseRepresentation
bin111101111101…
…011011000100
31010120012100100
4331331123010
513124223442
61340044100
7255025566
oct75753304
933505310
1016242372
119194153
125533630
133498c93
14222b336
15165c84c
hexf7d6c4

16242372 has 18 divisors (see below), whose sum is σ = 41057198. Its totient is φ = 5414112.

The previous prime is 16242367. The next prime is 16242377. The reversal of 16242372 is 27324261.

16242372 is a `hidden beast` number, since 1 + 624 + 2 + 37 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (16242367) and next prime (16242377).

It can be written as a sum of positive squares in only one way, i.e., 13883076 + 2359296 = 3726^2 + 1536^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (16242377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225553 + ... + 225624.

Almost surely, 216242372 is an apocalyptic number.

16242372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16242372 is an abundant number, since it is smaller than the sum of its proper divisors (24814826).

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

16242372 is a wasteful number, since it uses less digits than its factorization.

16242372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451187 (or 451182 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 16242372 is about 4030.1826261349. The cubic root of 16242372 is about 253.2502120344.

The spelling of 16242372 in words is "sixteen million, two hundred forty-two thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 36 451177 902354 1353531 1804708 2707062 4060593 5414124 8121186 16242372