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20703071650 = 2521923947509
BaseRepresentation
bin10011010001111111…
…111100110110100010
31222102211111000020111
4103101333330312202
5314344441243100
613302202401534
71332020130322
oct232177746642
958384430214
1020703071650
118864387178
1240195002aa
131c4c251171
14100581d282
158128486ba
hex4d1ffcda2

20703071650 has 48 divisors (see below), whose sum is σ = 42296846400. Its totient is φ = 7504263360.

The previous prime is 20703071617. The next prime is 20703071747. The reversal of 20703071650 is 5617030702.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451905 + ... + 495604.

It is an arithmetic number, because the mean of its divisors is an integer number (881184300).

Almost surely, 220703071650 is an apocalyptic number.

20703071650 is an abundant number, since it is smaller than the sum of its proper divisors (21593774750).

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

20703071650 is a wasteful number, since it uses less digits than its factorization.

20703071650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947563 (or 947558 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The spelling of 20703071650 in words is "twenty billion, seven hundred three million, seventy-one thousand, six hundred fifty".

Divisors: 1 2 5 10 19 23 25 38 46 50 95 115 190 230 437 475 575 874 950 1150 2185 4370 10925 21850 947509 1895018 4737545 9475090 18002671 21792707 23687725 36005342 43585414 47375450 90013355 108963535 180026710 217927070 414061433 450066775 544817675 828122866 900133550 1089635350 2070307165 4140614330 10351535825 20703071650