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20370686853 = 311824374887
BaseRepresentation
bin10010111110001100…
…000000001110000101
31221120200001010000110
4102332030000032011
5313204343434403
613205210303233
71320542660406
oct227614001605
957520033013
1020370686853
1187037a35a0
123b46127b19
131bc8424a7a
14db36199ad
157e358e103
hex4be300385

20370686853 has 16 divisors (see below), whose sum is σ = 29634080256. Its totient is φ = 12344208240.

The previous prime is 20370686827. The next prime is 20370686863. The reversal of 20370686853 is 35868607302.

It is not a de Polignac number, because 20370686853 - 26 = 20370686789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20370686863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234576 + ... + 309462.

It is an arithmetic number, because the mean of its divisors is an integer number (1852130016).

Almost surely, 220370686853 is an apocalyptic number.

It is an amenable number.

20370686853 is a deficient number, since it is larger than the sum of its proper divisors (9263393403).

20370686853 is a wasteful number, since it uses less digits than its factorization.

20370686853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83144.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 20370686853 in words is "twenty billion, three hundred seventy million, six hundred eighty-six thousand, eight hundred fifty-three".

Divisors: 1 3 11 33 8243 24729 74887 90673 224661 272019 823757 2471271 617293541 1851880623 6790228951 20370686853