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120152057 = 971238681
BaseRepresentation
bin1110010100101…
…01111111111001
322101002100122012
413022111333321
5221224331212
615531135305
72656163354
oct712257771
9271070565
10120152057
1161906023
12342a4535
131bb7b1bc
1411d5929b
15a835922
hex7295ff9

120152057 has 4 divisors (see below), whose sum is σ = 121390836. Its totient is φ = 118913280.

The previous prime is 120152009. The next prime is 120152089. The reversal of 120152057 is 750251021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79905721 + 40246336 = 8939^2 + 6344^2 .

It is a cyclic number.

It is not a de Polignac number, because 120152057 - 212 = 120147961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120182057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619244 + ... + 619437.

It is an arithmetic number, because the mean of its divisors is an integer number (30347709).

Almost surely, 2120152057 is an apocalyptic number.

It is an amenable number.

120152057 is a deficient number, since it is larger than the sum of its proper divisors (1238779).

120152057 is an equidigital number, since it uses as much as digits as its factorization.

120152057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238778.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 120152057 is about 10961.3893736150. The cubic root of 120152057 is about 493.4506629361.

The spelling of 120152057 in words is "one hundred twenty million, one hundred fifty-two thousand, fifty-seven".

Divisors: 1 97 1238681 120152057