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120107749 is a prime number
BaseRepresentation
bin1110010100010…
…11001011100101
322101000002212011
413022023023211
5221221421444
615530154221
72655620236
oct712131345
9271002764
10120107749
1161885803
1234282971
131bb63c98
1411d4708d
15a827734
hex728b2e5

120107749 has 2 divisors, whose sum is σ = 120107750. Its totient is φ = 120107748.

The previous prime is 120107717. The next prime is 120107773. The reversal of 120107749 is 947701021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112211649 + 7896100 = 10593^2 + 2810^2 .

It is a cyclic number.

It is not a de Polignac number, because 120107749 - 25 = 120107717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120107749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120107149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60053874 + 60053875.

It is an arithmetic number, because the mean of its divisors is an integer number (60053875).

Almost surely, 2120107749 is an apocalyptic number.

It is an amenable number.

120107749 is a deficient number, since it is larger than the sum of its proper divisors (1).

120107749 is an equidigital number, since it uses as much as digits as its factorization.

120107749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 120107749 is about 10959.3680930973. The cubic root of 120107749 is about 493.3899995273.

The spelling of 120107749 in words is "one hundred twenty million, one hundred seven thousand, seven hundred forty-nine".