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120081730720 = 2557832814597
BaseRepresentation
bin110111111010101101…
…1011100110010100000
3102110221200221221222011
41233311123130302200
53431411410340340
6131055332122304
711450510604250
oct1576533346240
9373850857864
10120081730720
1146a21008676
121b333166394
13b429102443
145b5213d960
1531cc24c0ea
hex1bf56dcca0

120081730720 has 192 divisors, whose sum is σ = 329366290176. Its totient is φ = 40521277440.

The previous prime is 120081730711. The next prime is 120081730721. The reversal of 120081730720 is 27037180021.

It is not an unprimeable number, because it can be changed into a prime (120081730721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26119462 + ... + 26124058.

It is an arithmetic number, because the mean of its divisors is an integer number (1715449428).

Almost surely, 2120081730720 is an apocalyptic number.

120081730720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120081730720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164683145088).

120081730720 is an abundant number, since it is smaller than the sum of its proper divisors (209284559456).

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

120081730720 is a wasteful number, since it uses less digits than its factorization.

120081730720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983 (or 4975 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The spelling of 120081730720 in words is "one hundred twenty billion, eighty-one million, seven hundred thirty thousand, seven hundred twenty".