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120928208 = 2417444589
BaseRepresentation
bin1110011010100…
…11011111010000
322102112210022112
413031103133100
5221424200313
615555524452
72665605242
oct715233720
9272483275
10120928208
1162296175
12345b9728
131c09056b
14120bc092
15a93a8a8
hex73537d0

120928208 has 20 divisors (see below), whose sum is σ = 248081220. Its totient is φ = 56907264.

The previous prime is 120928187. The next prime is 120928219. The reversal of 120928208 is 802829021.

It can be written as a sum of positive squares in 2 ways, for example, as 55771024 + 65157184 = 7468^2 + 8072^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222023 + ... + 222566.

It is an arithmetic number, because the mean of its divisors is an integer number (12404061).

Almost surely, 2120928208 is an apocalyptic number.

It is an amenable number.

120928208 is an abundant number, since it is smaller than the sum of its proper divisors (127153012).

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

120928208 is a wasteful number, since it uses less digits than its factorization.

120928208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444614 (or 444608 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 120928208 is about 10996.7362430859. The cubic root of 120928208 is about 494.5109041705.

The spelling of 120928208 in words is "one hundred twenty million, nine hundred twenty-eight thousand, two hundred eight".

Divisors: 1 2 4 8 16 17 34 68 136 272 444589 889178 1778356 3556712 7113424 7558013 15116026 30232052 60464104 120928208