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120310200020 = 22525492359949
BaseRepresentation
bin111000000001100001…
…0111111011011010100
3102111112121212101221002
41300003002333123110
53432343402400040
6131134133042432
711456253553433
oct1600302773324
9374477771832
10120310200020
1147028a75a7a
121b397786418
13b464546a8a
145b7461311a
1531e232ba15
hex1c030bf6d4

120310200020 has 24 divisors (see below), whose sum is σ = 252750645000. Its totient is φ = 48105180032.

The previous prime is 120310199959. The next prime is 120310200061. The reversal of 120310200020 is 20002013021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13970294416 + 106339905604 = 118196^2 + 326098^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120310199974 and 120310200010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128995 + ... + 1230954.

It is an arithmetic number, because the mean of its divisors is an integer number (10531276875).

Almost surely, 2120310200020 is an apocalyptic number.

120310200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120310200020 is an abundant number, since it is smaller than the sum of its proper divisors (132440444980).

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

120310200020 is a wasteful number, since it uses less digits than its factorization.

120310200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362507 (or 2362505 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 120310200020 its reverse (20002013021), we get a palindrome (140312213041).

The spelling of 120310200020 in words is "one hundred twenty billion, three hundred ten million, two hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 2549 5098 10196 12745 25490 50980 2359949 4719898 9439796 11799745 23599490 47198980 6015510001 12031020002 24062040004 30077550005 60155100010 120310200020