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80689602 = 2371921181
BaseRepresentation
bin1001100111100…
…11100111000010
312121211110022210
410303303213002
5131124031402
612001242550
71666564440
oct463634702
9177743283
1080689602
1141602324
1223033456
1313942236
14aa05b90
15713d06c
hex4cf39c2

80689602 has 16 divisors (see below), whose sum is σ = 184433472. Its totient is φ = 23054160.

The previous prime is 80689597. The next prime is 80689603. The reversal of 80689602 is 20698608.

It is not an unprimeable number, because it can be changed into a prime (80689603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960549 + ... + 960632.

It is an arithmetic number, because the mean of its divisors is an integer number (11527092).

Almost surely, 280689602 is an apocalyptic number.

80689602 is an abundant number, since it is smaller than the sum of its proper divisors (103743870).

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

80689602 is a wasteful number, since it uses less digits than its factorization.

80689602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1921193.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 80689602 is about 8982.7391145463. The cubic root of 80689602 is about 432.1214828956.

The spelling of 80689602 in words is "eighty million, six hundred eighty-nine thousand, six hundred two".

Divisors: 1 2 3 6 7 14 21 42 1921181 3842362 5763543 11527086 13448267 26896534 40344801 80689602