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368639982 = 23220479999
BaseRepresentation
bin10101111110001…
…111111111101110
3221200122211222200
4111332033333232
51223332434412
6100325122330
712064250064
oct2576177756
9850584880
10368639982
1117a0a6747
12a35593a6
135b4b1589
1436d60034
152256b9dc
hex15f8ffee

368639982 has 12 divisors (see below), whose sum is σ = 798720000. Its totient is φ = 122879988.

The previous prime is 368639981. The next prime is 368639983. The reversal of 368639982 is 289936863.

It is an interprime number because it is at equal distance from previous prime (368639981) and next prime (368639983).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368639981) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10239982 + ... + 10240017.

It is an arithmetic number, because the mean of its divisors is an integer number (66560000).

Almost surely, 2368639982 is an apocalyptic number.

368639982 is an abundant number, since it is smaller than the sum of its proper divisors (430080018).

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

368639982 is a wasteful number, since it uses less digits than its factorization.

368639982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20480007 (or 20480004 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 368639982 is about 19199.9995312500. Note that the first 3 decimals coincide. The cubic root of 368639982 is about 717.0247477788.

The spelling of 368639982 in words is "three hundred sixty-eight million, six hundred thirty-nine thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 9 18 20479999 40959998 61439997 122879994 184319991 368639982