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20252850 = 2352135019
BaseRepresentation
bin100110101000…
…0100010110010
31102002221200120
41031100202302
520141042400
62002031110
7334101132
oct115204262
942087616
1020252850
11104832a2
126948496
134271547
142992ac2
151ba0ca0
hex13508b2

20252850 has 24 divisors (see below), whose sum is σ = 50227440. Its totient is φ = 5400720.

The previous prime is 20252849. The next prime is 20252851. The reversal of 20252850 is 5825202.

20252850 is nontrivially palindromic in base 12.

It is an interprime number because it is at equal distance from previous prime (20252849) and next prime (20252851).

It is a self number, because there is not a number n which added to its sum of digits gives 20252850.

It is not an unprimeable number, because it can be changed into a prime (20252851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67360 + ... + 67659.

It is an arithmetic number, because the mean of its divisors is an integer number (2092810).

Almost surely, 220252850 is an apocalyptic number.

20252850 is an abundant number, since it is smaller than the sum of its proper divisors (29974590).

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

20252850 is a wasteful number, since it uses less digits than its factorization.

20252850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135034 (or 135029 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 20252850 is about 4500.3166555255. The cubic root of 20252850 is about 272.5808754699.

The spelling of 20252850 in words is "twenty million, two hundred fifty-two thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 135019 270038 405057 675095 810114 1350190 2025285 3375475 4050570 6750950 10126425 20252850