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20310313032120 = 23351571078042093
BaseRepresentation
bin1001001111000110111001…
…11111100101100110111000
32122220122110122011211212110
410213203130333211212320
510130231010114011440
6111110232355212320
74164241330204266
oct447433477454670
978818418154773
1020310313032120
116520612243a81
1223403368a70a0
13b4433c9115c7
1450304ad29436
152534b7b38080
hex1278dcfe59b8

20310313032120 has 64 divisors (see below), whose sum is σ = 61319034306720. Its totient is φ = 5381586123264.

The previous prime is 20310313032091. The next prime is 20310313032127. The reversal of 20310313032120 is 2123031301302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310313032127) 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, 539002207 + ... + 539039886.

Almost surely, 220310313032120 is an apocalyptic number.

20310313032120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20310313032120 is an abundant number, since it is smaller than the sum of its proper divisors (41008721274600).

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

20310313032120 is a wasteful number, since it uses less digits than its factorization.

20310313032120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078042264 (or 1078042260 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20310313032120 its reverse (2123031301302), we get a palindrome (22433344333422).

The spelling of 20310313032120 in words is "twenty trillion, three hundred ten billion, three hundred thirteen million, thirty-two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 157 314 471 628 785 942 1256 1570 1884 2355 3140 3768 4710 6280 9420 18840 1078042093 2156084186 3234126279 4312168372 5390210465 6468252558 8624336744 10780420930 12936505116 16170631395 21560841860 25873010232 32341262790 43121683720 64682525580 129365051160 169252608601 338505217202 507757825803 677010434404 846263043005 1015515651606 1354020868808 1692526086010 2031031303212 2538789129015 3385052172020 4062062606424 5077578258030 6770104344040 10155156516060 20310313032120