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6889972 = 222374891
BaseRepresentation
bin11010010010000111110100
3110222001021011
4122102013310
53230434342
6403402004
7112364245
oct32220764
913861234
106889972
1139865a1
122383304
13157310b
14cb4ccc
15911717
hex6921f4

6889972 has 12 divisors (see below), whose sum is σ = 12581856. Its totient is φ = 3295160.

The previous prime is 6889969. The next prime is 6889997. The reversal of 6889972 is 2799886.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37354 + ... + 37537.

It is an arithmetic number, because the mean of its divisors is an integer number (1048488).

Almost surely, 26889972 is an apocalyptic number.

It is an amenable number.

6889972 is a deficient number, since it is larger than the sum of its proper divisors (5691884).

6889972 is a wasteful number, since it uses less digits than its factorization.

6889972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74918 (or 74916 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 6889972 is about 2624.8756161007. The cubic root of 6889972 is about 190.2855540009.

The spelling of 6889972 in words is "six million, eight hundred eighty-nine thousand, nine hundred seventy-two".

Divisors: 1 2 4 23 46 92 74891 149782 299564 1722493 3444986 6889972