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120210120020 = 22511235352187
BaseRepresentation
bin110111111110100010…
…1001101110101010100
3102111021122112210222102
41233331011031311110
53432142242320040
6131120200021232
711453630106134
oct1577505156524
9374248483872
10120210120020
1146a8752a431
121b36a161818
13b4498a5a43
145b65200ac4
1531d865d515
hex1bfd14dd54

120210120020 has 24 divisors (see below), whose sum is σ = 252666091104. Its totient is φ = 48041221536.

The previous prime is 120210120013. The next prime is 120210120071. The reversal of 120210120020 is 20021012021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120210119983 and 120210120010.

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, 2653634 + ... + 2698553.

It is an arithmetic number, because the mean of its divisors is an integer number (10527753796).

Almost surely, 2120210120020 is an apocalyptic number.

120210120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120210120020 is an abundant number, since it is smaller than the sum of its proper divisors (132455971084).

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

120210120020 is a wasteful number, since it uses less digits than its factorization.

120210120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5353319 (or 5353317 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120210120020 its reverse (20021012021), we get a palindrome (140231132041).

The spelling of 120210120020 in words is "one hundred twenty billion, two hundred ten million, one hundred twenty thousand, twenty".

Divisors: 1 2 4 5 10 20 1123 2246 4492 5615 11230 22460 5352187 10704374 21408748 26760935 53521870 107043740 6010506001 12021012002 24042024004 30052530005 60105060010 120210120020