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120868925 = 5217412777
BaseRepresentation
bin1110011010001…
…01000000111101
322102102202222212
413031011000331
5221420301200
615554350205
72665240352
oct715050075
9272382885
10120868925
1162255681
123458b365
131c06c598
14120a4629
15a928035
hex734503d

120868925 has 12 divisors (see below), whose sum is σ = 150017556. Its totient is φ = 96604800.

The previous prime is 120868903. The next prime is 120868939. The reversal of 120868925 is 529868021.

It can be written as a sum of positive squares in 6 ways, for example, as 51079609 + 69789316 = 7147^2 + 8354^2 .

It is a de Polignac number, because none of the positive numbers 2k-120868925 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 42137 + ... + 44913.

It is an arithmetic number, because the mean of its divisors is an integer number (12501463).

Almost surely, 2120868925 is an apocalyptic number.

It is an amenable number.

120868925 is a deficient number, since it is larger than the sum of its proper divisors (29148631).

120868925 is a wasteful number, since it uses less digits than its factorization.

120868925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528 (or 4523 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 120868925 is about 10994.0404310699. The cubic root of 120868925 is about 494.4300824381.

The spelling of 120868925 in words is "one hundred twenty million, eight hundred sixty-eight thousand, nine hundred twenty-five".

Divisors: 1 5 25 1741 2777 8705 13885 43525 69425 4834757 24173785 120868925