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70890882 = 2312839209
BaseRepresentation
bin1000011100110…
…11010110000010
311221101122000020
410032123112002
5121122002012
611011234310
71520363646
oct416332602
9157348006
1070890882
113701a407
121b8a8996
13118c118a
1495b4c26
156354a8c
hex439b582

70890882 has 16 divisors (see below), whose sum is σ = 141907680. Its totient is φ = 23609312.

The previous prime is 70890871. The next prime is 70890917. The reversal of 70890882 is 28809807.

It is a happy 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, 3094 + ... + 12302.

It is an arithmetic number, because the mean of its divisors is an integer number (8869230).

Almost surely, 270890882 is an apocalyptic number.

70890882 is an abundant number, since it is smaller than the sum of its proper divisors (71016798).

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

70890882 is a wasteful number, since it uses less digits than its factorization.

70890882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10497.

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 70890882 is about 8419.6723214149. The cubic root of 70890882 is about 413.8695357773.

The spelling of 70890882 in words is "seventy million, eight hundred ninety thousand, eight hundred eighty-two".

Divisors: 1 2 3 6 1283 2566 3849 7698 9209 18418 27627 55254 11815147 23630294 35445441 70890882