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120313 = 235231
BaseRepresentation
bin11101010111111001
320010001001
4131113321
512322223
62325001
71010524
oct352771
9203031
10120313
1182436
1259761
13429bb
1431bbb
15259ad
hex1d5f9

120313 has 4 divisors (see below), whose sum is σ = 125568. Its totient is φ = 115060.

The previous prime is 120299. The next prime is 120319. The reversal of 120313 is 313021.

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: 313021 = 1718413.

It is a cyclic number.

It is not a de Polignac number, because 120313 - 213 = 112121 is a prime.

It is a Duffinian number.

120313 is a lucky number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 120313.

It is not an unprimeable number, because it can be changed into a prime (120319) 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, 2593 + ... + 2638.

It is an arithmetic number, because the mean of its divisors is an integer number (31392).

2120313 is an apocalyptic number.

It is an amenable number.

120313 is a deficient number, since it is larger than the sum of its proper divisors (5255).

120313 is an equidigital number, since it uses as much as digits as its factorization.

120313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5254.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 120313 is about 346.8616438870. The cubic root of 120313 is about 49.3670889424.

Subtracting from 120313 its product of nonzero digits (18), we obtain a triangular number (120295 = T490).

Adding to 120313 its reverse (313021), we get a palindrome (433334).

The spelling of 120313 in words is "one hundred twenty thousand, three hundred thirteen".

Divisors: 1 23 5231 120313