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27969982 = 2471491997
BaseRepresentation
bin110101010110…
…0100110111110
31221122000121021
41222230212332
524130014412
62435254354
7456512065
oct152544676
957560537
1027969982
1114874297
12944a3ba
135a43cb1
143a011dc
1526c7607
hex1aac9be

27969982 has 16 divisors (see below), whose sum is σ = 43156800. Its totient is φ = 13588768.

The previous prime is 27969979. The next prime is 27970009. The reversal of 27969982 is 28996972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13008 + ... + 15004.

It is an arithmetic number, because the mean of its divisors is an integer number (2697300).

Almost surely, 227969982 is an apocalyptic number.

27969982 is a deficient number, since it is larger than the sum of its proper divisors (15186818).

27969982 is a wasteful number, since it uses less digits than its factorization.

27969982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195.

The product of its digits is 979776, while the sum is 52.

The square root of 27969982 is about 5288.6654271186. The cubic root of 27969982 is about 303.5503437101.

The spelling of 27969982 in words is "twenty-seven million, nine hundred sixty-nine thousand, nine hundred eighty-two".

Divisors: 1 2 47 94 149 298 1997 3994 7003 14006 93859 187718 297553 595106 13984991 27969982