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120752172 = 223229115663
BaseRepresentation
bin1110011001010…
…00100000101100
322102012211211200
413030220200230
5221403032142
615552045500
72664243102
oct714504054
9272184750
10120752172
1162185992
1234533890
131c02b3b8
1412073c72
15a90364c
hex732882c

120752172 has 36 divisors (see below), whose sum is σ = 315762720. Its totient is φ = 38862432.

The previous prime is 120752171. The next prime is 120752197. The reversal of 120752172 is 271257021.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (120752171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56788 + ... + 58875.

Almost surely, 2120752172 is an apocalyptic number.

120752172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120752172 is an abundant number, since it is smaller than the sum of its proper divisors (195010548).

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

120752172 is a wasteful number, since it uses less digits than its factorization.

120752172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115702 (or 115697 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 120752172 is about 10988.7293168956. The cubic root of 120752172 is about 494.2708333666.

The spelling of 120752172 in words is "one hundred twenty million, seven hundred fifty-two thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 9 12 18 29 36 58 87 116 174 261 348 522 1044 115663 231326 346989 462652 693978 1040967 1387956 2081934 3354227 4163868 6708454 10062681 13416908 20125362 30188043 40250724 60376086 120752172