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120031012000 = 255330007753
BaseRepresentation
bin110111111001001100…
…1111110010010100000
3102110211011112011222001
41233302121332102200
53431310414341000
6131050321053344
711446323524254
oct1576231762240
9373734464861
10120031012000
11469a5416979
121b31a187254
13b41b754b73
145b494da264
1531c7a7e46a
hex1bf267e4a0

120031012000 has 48 divisors (see below), whose sum is σ = 294916206312. Its totient is φ = 48012403200.

The previous prime is 120031011983. The next prime is 120031012037. The reversal of 120031012000 is 210130021.

It can be written as a sum of positive squares in 4 ways, for example, as 47111570704 + 72919441296 = 217052^2 + 270036^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 14999877 + ... + 15007876.

Almost surely, 2120031012000 is an apocalyptic number.

120031012000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120031012000 is an abundant number, since it is smaller than the sum of its proper divisors (174885194312).

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

120031012000 is an equidigital number, since it uses as much as digits as its factorization.

120031012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30007778 (or 30007760 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 120031012000 its reverse (210130021), we get a palindrome (120241142021).

The spelling of 120031012000 in words is "one hundred twenty billion, thirty-one million, twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 30007753 60015506 120031012 150038765 240062024 300077530 480124048 600155060 750193825 960248096 1200310120 1500387650 2400620240 3000775300 3750969125 4801240480 6001550600 7501938250 12003101200 15003876500 24006202400 30007753000 60015506000 120031012000