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20259932 = 2272119397
BaseRepresentation
bin100110101001…
…0010001011100
31102010022101212
41031102101130
520141304212
62002123552
7334130600
oct115222134
942108355
1020259932
1110488650
1269505b8
134274834
142995500
151ba2e22
hex135245c

20259932 has 36 divisors (see below), whose sum is σ = 44997624. Its totient is φ = 7892640.

The previous prime is 20259919. The next prime is 20259949. The reversal of 20259932 is 23995202.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 2543 + ... + 6854.

It is an arithmetic number, because the mean of its divisors is an integer number (1249934).

Almost surely, 220259932 is an apocalyptic number.

20259932 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20259932 is an abundant number, since it is smaller than the sum of its proper divisors (24737692).

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

20259932 is a wasteful number, since it uses less digits than its factorization.

20259932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9426 (or 9417 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 20259932 is about 4501.1034202737. The cubic root of 20259932 is about 272.6126437197.

It can be divided in two parts, 20 and 259932, that added together give a palindrome (259952).

The spelling of 20259932 in words is "twenty million, two hundred fifty-nine thousand, nine hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 9397 18794 37588 65779 103367 131558 206734 263116 413468 460453 723569 920906 1447138 1841812 2894276 5064983 10129966 20259932