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20296008 = 233431321
BaseRepresentation
bin100110101101…
…1000101001000
31102012010220000
41031123011020
520143433013
62003003000
7334341015
oct115330510
942163800
1020296008
1110502767
126969460
134288095
1429a470c
151bad973
hex135b148

20296008 has 40 divisors (see below), whose sum is σ = 56849430. Its totient is φ = 6765120.

The previous prime is 20295991. The next prime is 20296013. The reversal of 20296008 is 80069202.

It can be written as a sum of positive squares in only one way, i.e., 16990884 + 3305124 = 4122^2 + 1818^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 15013 + ... + 16308.

Almost surely, 220296008 is an apocalyptic number.

It is an amenable number.

20296008 is an abundant number, since it is smaller than the sum of its proper divisors (36553422).

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

20296008 is a wasteful number, since it uses less digits than its factorization.

20296008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31339 (or 31326 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20296008 is about 4505.1090996778. The cubic root of 20296008 is about 272.7743576887.

The spelling of 20296008 in words is "twenty million, two hundred ninety-six thousand, eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 648 31321 62642 93963 125284 187926 250568 281889 375852 563778 751704 845667 1127556 1691334 2255112 2537001 3382668 5074002 6765336 10148004 20296008