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20480798 = 2131136971
BaseRepresentation
bin100111000100…
…0001100011110
31102112112101002
41032020030132
520220341143
62010550302
7336040532
oct116101436
942475332
1020480798
1110619588
126a38392
134321220
142a11bc2
151be85b8
hex138831e

20480798 has 16 divisors (see below), whose sum is σ = 33381936. Its totient is φ = 9367680.

The previous prime is 20480797. The next prime is 20480809. The reversal of 20480798 is 89708402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20480791) 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 7 ways as a sum of consecutive naturals, for example, 548 + ... + 6423.

It is an arithmetic number, because the mean of its divisors is an integer number (2086371).

Almost surely, 220480798 is an apocalyptic number.

20480798 is a deficient number, since it is larger than the sum of its proper divisors (12901138).

20480798 is a wasteful number, since it uses less digits than its factorization.

20480798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7099.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 20480798 is about 4525.5715661118. The cubic root of 20480798 is about 273.5997049659.

The spelling of 20480798 in words is "twenty million, four hundred eighty thousand, seven hundred ninety-eight".

Divisors: 1 2 13 26 113 226 1469 2938 6971 13942 90623 181246 787723 1575446 10240399 20480798