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20335250 = 253136257
BaseRepresentation
bin100110110010…
…0101010010010
31102021010201102
41031210222102
520201212000
62003504402
7334563305
oct115445222
942233642
1020335250
111052a1a1
126988102
13429cbc0
1429b4b3c
151bba3d5
hex1364a92

20335250 has 32 divisors (see below), whose sum is σ = 41002416. Its totient is φ = 7507200.

The previous prime is 20335229. The next prime is 20335253. The reversal of 20335250 is 5253302.

It can be written as a sum of positive squares in 8 ways, for example, as 2093809 + 18241441 = 1447^2 + 4271^2 .

It is not an unprimeable number, because it can be changed into a prime (20335253) 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 15 ways as a sum of consecutive naturals, for example, 122 + ... + 6378.

Almost surely, 220335250 is an apocalyptic number.

20335250 is an abundant number, since it is smaller than the sum of its proper divisors (20667166).

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

20335250 is a wasteful number, since it uses less digits than its factorization.

20335250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6287 (or 6277 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 20335250 is about 4509.4622739302. The cubic root of 20335250 is about 272.9500460957.

Adding to 20335250 its reverse (5253302), we get a palindrome (25588552).

It can be divided in two parts, 203 and 35250, that added together give a palindrome (35453).

The spelling of 20335250 in words is "twenty million, three hundred thirty-five thousand, two hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 125 130 250 325 650 1625 3250 6257 12514 31285 62570 81341 156425 162682 312850 406705 782125 813410 1564250 2033525 4067050 10167625 20335250