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20602432 = 26893617
BaseRepresentation
bin100111010010…
…1111001000000
31102202201020001
41032211321000
520233234212
62013325344
7340055254
oct116457100
942681201
1020602432
11106a1a04
126a96854
1343646b6
142a44264
151c1e657
hex13a5e40

20602432 has 28 divisors (see below), whose sum is σ = 41353740. Its totient is φ = 10182656.

The previous prime is 20602423. The next prime is 20602447. The reversal of 20602432 is 23420602.

It can be written as a sum of positive squares in 2 ways, for example, as 1382976 + 19219456 = 1176^2 + 4384^2 .

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 3 ways as a sum of consecutive naturals, for example, 3888 + ... + 7504.

Almost surely, 220602432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20602432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20676870).

20602432 is an abundant number, since it is smaller than the sum of its proper divisors (20751308).

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

20602432 is an equidigital number, since it uses as much as digits as its factorization.

20602432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718 (or 3708 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20602432 is about 4538.9901960678. The cubic root of 20602432 is about 274.1402659739.

The spelling of 20602432 in words is "twenty million, six hundred two thousand, four hundred thirty-two".

Divisors: 1 2 4 8 16 32 64 89 178 356 712 1424 2848 3617 5696 7234 14468 28936 57872 115744 231488 321913 643826 1287652 2575304 5150608 10301216 20602432