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120031032020 = 22513145813371
BaseRepresentation
bin110111111001001101…
…0000011001011010100
3102110211011120012102112
41233302122003023110
53431310421011040
6131050321330152
711446323636524
oct1576232031324
9373734505375
10120031032020
11469a542aa19
121b31a196958
13b41b761003
145b49503684
1531c7a85365
hex1bf26832d4

120031032020 has 24 divisors (see below), whose sum is σ = 253989334368. Its totient is φ = 47645904800.

The previous prime is 120031031999. The next prime is 120031032053. The reversal of 120031032020 is 20230130021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120031031986 and 120031032004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22904066 + ... + 22909305.

It is an arithmetic number, because the mean of its divisors is an integer number (10582888932).

Almost surely, 2120031032020 is an apocalyptic number.

120031032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120031032020 is an abundant number, since it is smaller than the sum of its proper divisors (133958302348).

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

120031032020 is a wasteful number, since it uses less digits than its factorization.

120031032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45813511 (or 45813509 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 120031032020 its reverse (20230130021), we get a palindrome (140261162041).

The spelling of 120031032020 in words is "one hundred twenty billion, thirty-one million, thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 45813371 91626742 183253484 229066855 458133710 916267420 6001551601 12003103202 24006206404 30007758005 60015516010 120031032020