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20252365 = 574191381
BaseRepresentation
bin100110101000…
…0011011001101
31102002221000121
41031100123031
520141033430
62002024541
7334066540
oct115203315
942087017
1020252365
11104829a1
126948151
134271263
142992857
151ba0a7a
hex13506cd

20252365 has 16 divisors (see below), whose sum is σ = 27861120. Its totient is φ = 13844160.

The previous prime is 20252363. The next prime is 20252377. The reversal of 20252365 is 56325202.

It is not a de Polignac number, because 20252365 - 21 = 20252363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13975 + ... + 15355.

It is an arithmetic number, because the mean of its divisors is an integer number (1741320).

Almost surely, 220252365 is an apocalyptic number.

It is an amenable number.

20252365 is a deficient number, since it is larger than the sum of its proper divisors (7608755).

20252365 is a wasteful number, since it uses less digits than its factorization.

20252365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 20252365 is about 4500.2627701058. The cubic root of 20252365 is about 272.5786995987.

Adding to 20252365 its reverse (56325202), we get a palindrome (76577567).

The spelling of 20252365 in words is "twenty million, two hundred fifty-two thousand, three hundred sixty-five".

Divisors: 1 5 7 35 419 1381 2095 2933 6905 9667 14665 48335 578639 2893195 4050473 20252365