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120231130220 = 2256011556511
BaseRepresentation
bin110111111111001010…
…1010111010001101100
3102111100010002020112222
41233332111113101230
53432213132131340
6131122230214512
711454303513305
oct1577625272154
9374303066488
10120231130220
1146a9837a733
121b3751b4438
13b451050c06
145b67d0d7ac
1531da40d8b5
hex1bfe55746c

120231130220 has 12 divisors (see below), whose sum is σ = 252485373504. Its totient is φ = 48092452080.

The previous prime is 120231130181. The next prime is 120231130241. The reversal of 120231130220 is 22031132021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3005778236 + ... + 3005778275.

It is an arithmetic number, because the mean of its divisors is an integer number (21040447792).

Almost surely, 2120231130220 is an apocalyptic number.

120231130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120231130220 is an abundant number, since it is smaller than the sum of its proper divisors (132254243284).

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

120231130220 is a wasteful number, since it uses less digits than its factorization.

120231130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011556520 (or 6011556518 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 120231130220 its reverse (22031132021), we get a palindrome (142262262241).

The spelling of 120231130220 in words is "one hundred twenty billion, two hundred thirty-one million, one hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6011556511 12023113022 24046226044 30057782555 60115565110 120231130220