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20072888 = 2311307743
BaseRepresentation
bin100110010010…
…0100110111000
31101202210211022
41030210212320
520114313023
61554122012
7332421353
oct114444670
941683738
1020072888
1110370070
126880308
13420a664
14294729a
151b677c8
hex13249b8

20072888 has 32 divisors (see below), whose sum is σ = 41247360. Its totient is φ = 9082080.

The previous prime is 20072867. The next prime is 20072917. The reversal of 20072888 is 88827002.

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 7 ways as a sum of consecutive naturals, for example, 26645 + ... + 27387.

It is an arithmetic number, because the mean of its divisors is an integer number (1288980).

Almost surely, 220072888 is an apocalyptic number.

It is an amenable number.

20072888 is an abundant number, since it is smaller than the sum of its proper divisors (21174472).

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

20072888 is a wasteful number, since it uses less digits than its factorization.

20072888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 20072888 is about 4480.2776699664. The cubic root of 20072888 is about 271.7711093434.

The spelling of 20072888 in words is "twenty million, seventy-two thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 11 22 44 88 307 614 743 1228 1486 2456 2972 3377 5944 6754 8173 13508 16346 27016 32692 65384 228101 456202 912404 1824808 2509111 5018222 10036444 20072888