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120165313 = 217955147
BaseRepresentation
bin1110010100110…
…01001111000001
322101010000211011
413022121033001
5221230242223
615531320521
72656250122
oct712311701
9271100734
10120165313
1161914a84
12342b0141
131bb84248
1411d60049
15a83980d
hex72993c1

120165313 has 4 divisors (see below), whose sum is σ = 120222640. Its totient is φ = 120107988.

The previous prime is 120165289. The next prime is 120165319. The reversal of 120165313 is 313561021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313561021 = 2910812449.

It is a cyclic number.

It is not a de Polignac number, because 120165313 - 29 = 120164801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120165319) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 25395 + ... + 29752.

It is an arithmetic number, because the mean of its divisors is an integer number (30055660).

Almost surely, 2120165313 is an apocalyptic number.

It is an amenable number.

120165313 is a deficient number, since it is larger than the sum of its proper divisors (57327).

120165313 is an equidigital number, since it uses as much as digits as its factorization.

120165313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57326.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 120165313 is about 10961.9940248114. The cubic root of 120165313 is about 493.4688092240.

The spelling of 120165313 in words is "one hundred twenty million, one hundred sixty-five thousand, three hundred thirteen".

Divisors: 1 2179 55147 120165313