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120103685 = 51314912401
BaseRepresentation
bin1110010100010…
…10001100000101
322100222220021122
413022022030011
5221221304220
615530123325
72655602342
oct712121405
9270886248
10120103685
1161882749
1234280545
131bb62190
1411d457c9
15a826425
hex728a305

120103685 has 16 divisors (see below), whose sum is σ = 156265200. Its totient is φ = 88089600.

The previous prime is 120103679. The next prime is 120103699. The reversal of 120103685 is 586301021.

It can be written as a sum of positive squares in 8 ways, for example, as 32512804 + 87590881 = 5702^2 + 9359^2 .

It is not a de Polignac number, because 120103685 - 218 = 119841541 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3485 + ... + 15885.

It is an arithmetic number, because the mean of its divisors is an integer number (9766575).

Almost surely, 2120103685 is an apocalyptic number.

It is an amenable number.

120103685 is a deficient number, since it is larger than the sum of its proper divisors (36161515).

120103685 is a wasteful number, since it uses less digits than its factorization.

120103685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12568.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 120103685 is about 10959.1826793790. The cubic root of 120103685 is about 493.3844346363.

The spelling of 120103685 in words is "one hundred twenty million, one hundred three thousand, six hundred eighty-five".

Divisors: 1 5 13 65 149 745 1937 9685 12401 62005 161213 806065 1847749 9238745 24020737 120103685