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120864725 = 524834589
BaseRepresentation
bin1110011010000…
…11111111010101
322102102120020022
413031003333111
5221420132400
615554314525
72665222202
oct715037725
9272376208
10120864725
1162252503
1234588a45
131c06a6b7
14120a2ca9
15a926b85
hex7343fd5

120864725 has 6 divisors (see below), whose sum is σ = 149872290. Its totient is φ = 96691760.

The previous prime is 120864703. The next prime is 120864727. The reversal of 120864725 is 527468021.

It can be written as a sum of positive squares in 3 ways, for example, as 12517444 + 108347281 = 3538^2 + 10409^2 .

It is not a de Polignac number, because 120864725 - 220 = 119816149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120864727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2417270 + ... + 2417319.

It is an arithmetic number, because the mean of its divisors is an integer number (24978715).

Almost surely, 2120864725 is an apocalyptic number.

It is an amenable number.

120864725 is a deficient number, since it is larger than the sum of its proper divisors (29007565).

120864725 is an equidigital number, since it uses as much as digits as its factorization.

120864725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834599 (or 4834594 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 120864725 is about 10993.8494168330. The cubic root of 120864725 is about 494.4243554894.

The spelling of 120864725 in words is "one hundred twenty million, eight hundred sixty-four thousand, seven hundred twenty-five".

Divisors: 1 5 25 4834589 24172945 120864725