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20088292 = 2272331193
BaseRepresentation
bin100110010100…
…0010111100100
31101210120221211
41030220113210
520120311132
61554321204
7332514310
oct114502744
941716854
1020088292
11103806a4
126889204
134214683
14294cb40
151b6c147
hex13285e4

20088292 has 24 divisors (see below), whose sum is σ = 41924736. Its totient is φ = 8234688.

The previous prime is 20088259. The next prime is 20088293. The reversal of 20088292 is 29288002.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a pancake number, because a pancake can be divided into 20088292 parts by 6338 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (20088293) 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, 14953 + ... + 16240.

It is an arithmetic number, because the mean of its divisors is an integer number (1746864).

Almost surely, 220088292 is an apocalyptic number.

It is an amenable number.

20088292 is an abundant number, since it is smaller than the sum of its proper divisors (21836444).

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

20088292 is a wasteful number, since it uses less digits than its factorization.

20088292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31227 (or 31225 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 20088292 is about 4481.9964301637. The cubic root of 20088292 is about 271.8406109144.

The spelling of 20088292 in words is "twenty million, eighty-eight thousand, two hundred ninety-two".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 31193 62386 124772 218351 436702 717439 873404 1434878 2869756 5022073 10044146 20088292