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5638288885 = 5231492811171
BaseRepresentation
bin1010100000001000…
…10111010111110101
3112112221102202022021
411100010113113311
543021400221020
62331252033141
7256502444005
oct52004272765
915487382267
105638288885
112433737989
1211143027b1
136bb172218
143b6b74005
1522eed91aa
hex1501175f5

5638288885 has 32 divisors (see below), whose sum is σ = 7138886400. Its totient is φ = 4266662400.

The previous prime is 5638288861. The next prime is 5638288891. The reversal of 5638288885 is 5888828365.

It is not a de Polignac number, because 5638288885 - 211 = 5638286837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4814350 + ... + 4815520.

It is an arithmetic number, because the mean of its divisors is an integer number (223090200).

Almost surely, 25638288885 is an apocalyptic number.

It is an amenable number.

5638288885 is a deficient number, since it is larger than the sum of its proper divisors (1500597515).

5638288885 is a wasteful number, since it uses less digits than its factorization.

5638288885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629.

The product of its digits is 29491200, while the sum is 61.

The square root of 5638288885 is about 75088.5403040970. The cubic root of 5638288885 is about 1779.8460588369.

The spelling of 5638288885 in words is "five billion, six hundred thirty-eight million, two hundred eighty-eight thousand, eight hundred eighty-five".

Divisors: 1 5 23 115 149 281 745 1171 1405 3427 5855 6463 17135 26933 32315 41869 134665 174479 209345 329051 872395 962987 1645255 4013017 4814935 7568173 20065085 37840865 49028599 245142995 1127657777 5638288885