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20088154 = 223617159
BaseRepresentation
bin100110010100…
…0010101011010
31101210120202201
41030220111122
520120310104
61554320414
7332514022
oct114502532
941716681
1020088154
1110380589
12688910a
1342145a8
14294ca82
151b6c0a4
hex132855a

20088154 has 16 divisors (see below), whose sum is σ = 31962240. Its totient is φ = 9448560.

The previous prime is 20088139. The next prime is 20088157. The reversal of 20088154 is 45188002.

It is a super-2 number, since 2×200881542 = 807067862255432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20088157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774 + ... + 6385.

It is an arithmetic number, because the mean of its divisors is an integer number (1997640).

Almost surely, 220088154 is an apocalyptic number.

20088154 is a deficient number, since it is larger than the sum of its proper divisors (11874086).

20088154 is a wasteful number, since it uses less digits than its factorization.

20088154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7245.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 20088154 is about 4481.9810352120. The cubic root of 20088154 is about 271.8399884276.

The spelling of 20088154 in words is "twenty million, eighty-eight thousand, one hundred fifty-four".

Divisors: 1 2 23 46 61 122 1403 2806 7159 14318 164657 329314 436699 873398 10044077 20088154