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3189972 = 223265831
BaseRepresentation
bin1100001010110011010100
320000001211010
430022303110
51304034342
6152212220
736054132
oct14126324
96001733
103189972
111889745
12109a070
13878c76
145d0752
1543029c
hex30acd4

3189972 has 12 divisors (see below), whose sum is σ = 7443296. Its totient is φ = 1063320.

The previous prime is 3189961. The next prime is 3189973. The reversal of 3189972 is 2799813.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 3189972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3189973) 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, 132904 + ... + 132927.

Almost surely, 23189972 is an apocalyptic number.

It is an amenable number.

3189972 is an abundant number, since it is smaller than the sum of its proper divisors (4253324).

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

3189972 is a wasteful number, since it uses less digits than its factorization.

3189972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265838 (or 265836 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 3189972 is about 1786.0492714368. The cubic root of 3189972 is about 147.2071677551.

The spelling of 3189972 in words is "three million, one hundred eighty-nine thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 265831 531662 797493 1063324 1594986 3189972