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30986022 = 2310874751
BaseRepresentation
bin111011000110…
…0111100100110
32011022020211110
41312030330212
530413023042
63024045450
7524243154
oct166147446
964266743
1030986022
1116544291
12a463886
13655ba32
1441883d4
152ac109c
hex1d8cf26

30986022 has 16 divisors (see below), whose sum is σ = 62042112. Its totient is φ = 10317000.

The previous prime is 30986009. The next prime is 30986027. The reversal of 30986022 is 22068903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30986027) 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, 4147 + ... + 8897.

It is an arithmetic number, because the mean of its divisors is an integer number (3877632).

Almost surely, 230986022 is an apocalyptic number.

30986022 is an abundant number, since it is smaller than the sum of its proper divisors (31056090).

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

30986022 is a wasteful number, since it uses less digits than its factorization.

30986022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30986022 is about 5566.5089598419. The cubic root of 30986022 is about 314.0908428519.

The spelling of 30986022 in words is "thirty million, nine hundred eighty-six thousand, twenty-two".

Divisors: 1 2 3 6 1087 2174 3261 4751 6522 9502 14253 28506 5164337 10328674 15493011 30986022