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20332960 = 255127081
BaseRepresentation
bin100110110010…
…0000110100000
31102021000120121
41031210012200
520201123320
62003450024
7334553524
oct115440640
942230517
1020332960
11105284aa
126986914
13429bb4b
1429b3d84
151bb98aa
hex13641a0

20332960 has 24 divisors (see below), whose sum is σ = 48036996. Its totient is φ = 8133120.

The previous prime is 20332957. The next prime is 20332979. The reversal of 20332960 is 6923302.

It can be written as a sum of positive squares in 2 ways, for example, as 19820304 + 512656 = 4452^2 + 716^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63381 + ... + 63700.

Almost surely, 220332960 is an apocalyptic number.

20332960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20332960 is an abundant number, since it is smaller than the sum of its proper divisors (27704036).

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

20332960 is a wasteful number, since it uses less digits than its factorization.

20332960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127096 (or 127088 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 20332960 is about 4509.2083562417. The cubic root of 20332960 is about 272.9397998637.

The spelling of 20332960 in words is "twenty million, three hundred thirty-two thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 127081 254162 508324 635405 1016648 1270810 2033296 2541620 4066592 5083240 10166480 20332960