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120480920 = 2357430289
BaseRepresentation
bin1110010111001…
…10010010011000
322101201001202022
413023212102120
5221320342140
615542154012
72662033220
oct713462230
9271631668
10120480920
116201010a
1234422908
131bc64ab1
1412003080
15a89d0b5
hex72e6498

120480920 has 32 divisors (see below), whose sum is σ = 309808800. Its totient is φ = 41307648.

The previous prime is 120480907. The next prime is 120480947. The reversal of 120480920 is 29084021.

It is a self number, because there is not a number n which added to its sum of digits gives 120480920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214865 + ... + 215424.

It is an arithmetic number, because the mean of its divisors is an integer number (9681525).

Almost surely, 2120480920 is an apocalyptic number.

120480920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120480920 is an abundant number, since it is smaller than the sum of its proper divisors (189327880).

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

120480920 is a wasteful number, since it uses less digits than its factorization.

120480920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430307 (or 430303 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 120480920 is about 10976.3800954595. The cubic root of 120480920 is about 493.9004536423.

The spelling of 120480920 in words is "one hundred twenty million, four hundred eighty thousand, nine hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 430289 860578 1721156 2151445 3012023 3442312 4302890 6024046 8605780 12048092 15060115 17211560 24096184 30120230 60240460 120480920