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20733051020 = 22511264735603
BaseRepresentation
bin10011010011110010…
…010100000010001100
31222111220220010012112
4103103302110002030
5314430130113040
613305153123152
71332533011613
oct232362240214
958456803175
1020733051020
11887a2a3110
1240275594b8
131c55519936
1410097c487a
158152bb365
hex4d3c9408c

20733051020 has 48 divisors (see below), whose sum is σ = 47516813568. Its totient is φ = 7536231360.

The previous prime is 20733051019. The next prime is 20733051067. The reversal of 20733051020 is 2015033702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564539 + ... + 600141.

It is an arithmetic number, because the mean of its divisors is an integer number (989933616).

Almost surely, 220733051020 is an apocalyptic number.

20733051020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20733051020 is an abundant number, since it is smaller than the sum of its proper divisors (26783762548).

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

20733051020 is a wasteful number, since it uses less digits than its factorization.

20733051020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38270 (or 38268 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

Adding to 20733051020 its reverse (2015033702), we get a palindrome (22748084722).

The spelling of 20733051020 in words is "twenty billion, seven hundred thirty-three million, fifty-one thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 2647 5294 10588 13235 26470 29117 35603 52940 58234 71206 116468 142412 145585 178015 291170 356030 391633 582340 712060 783266 1566532 1958165 3916330 7832660 94241141 188482282 376964564 471205705 942411410 1036652551 1884822820 2073305102 4146610204 5183262755 10366525510 20733051020