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20604720286 = 283124124821
BaseRepresentation
bin10011001100001000…
…110001010010011110
31222011222102020112101
4103030020301102132
5314144302022121
613244330355314
71326414142543
oct231410612236
958158366471
1020604720286
118813911357
123bb058bb3a
131c34a66ba7
14dd673abca
15808dbc491
hex4cc23149e

20604720286 has 8 divisors (see below), whose sum is σ = 31279455144. Its totient is φ = 10178235240.

The previous prime is 20604720277. The next prime is 20604720289. The reversal of 20604720286 is 68202740602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20604720289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62062245 + ... + 62062576.

It is an arithmetic number, because the mean of its divisors is an integer number (3909931893).

Almost surely, 220604720286 is an apocalyptic number.

20604720286 is a deficient number, since it is larger than the sum of its proper divisors (10674734858).

20604720286 is a wasteful number, since it uses less digits than its factorization.

20604720286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124124906.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 20604720286 in words is "twenty billion, six hundred four million, seven hundred twenty thousand, two hundred eighty-six".

Divisors: 1 2 83 166 124124821 248249642 10302360143 20604720286