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120513945372 = 22373137572997
BaseRepresentation
bin111000000111100110…
…0001101111100011100
3102112001211020202000020
41300033030031330130
53433303032222442
6131210252032140
711464306430262
oct1601714157434
9375054222006
10120513945372
1147122a86967
121b433a62650
13b497812a62
145b936cc432
1532051759ec
hex1c0f30df1c

120513945372 has 24 divisors (see below), whose sum is σ = 285051251856. Its totient is φ = 39621022848.

The previous prime is 120513945371. The next prime is 120513945397. The reversal of 120513945372 is 273549315021.

It is a super-2 number, since 2×1205139453722 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120513945371) by changing a digit.

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, 68785623 + ... + 68787374.

It is an arithmetic number, because the mean of its divisors is an integer number (11877135494).

Almost surely, 2120513945372 is an apocalyptic number.

120513945372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120513945372 is an abundant number, since it is smaller than the sum of its proper divisors (164537306484).

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

120513945372 is a wasteful number, since it uses less digits than its factorization.

120513945372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137573077 (or 137573075 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 120513945372 in words is "one hundred twenty billion, five hundred thirteen million, nine hundred forty-five thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 73 146 219 292 438 876 137572997 275145994 412718991 550291988 825437982 1650875964 10042828781 20085657562 30128486343 40171315124 60256972686 120513945372