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120315 = 3513617
BaseRepresentation
bin11101010111111011
320010001010
4131113323
512322230
62325003
71010526
oct352773
9203033
10120315
1182438
1259763
13429c0
1431bbd
15259b0
hex1d5fb

120315 has 16 divisors (see below), whose sum is σ = 207648. Its totient is φ = 59136.

The previous prime is 120299. The next prime is 120319. The reversal of 120315 is 513021.

It is not a de Polignac number, because 120315 - 24 = 120299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120319) 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 15 ways as a sum of consecutive naturals, for example, 114 + ... + 503.

It is an arithmetic number, because the mean of its divisors is an integer number (12978).

2120315 is an apocalyptic number.

120315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120315 is a deficient number, since it is larger than the sum of its proper divisors (87333).

120315 is a wasteful number, since it uses less digits than its factorization.

120315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 120315 is about 346.8645268689. The cubic root of 120315 is about 49.3673624890.

Adding to 120315 its reverse (513021), we get a palindrome (633336).

It can be divided in two parts, 120 and 315, that added together give a triangular number (435 = T29).

The spelling of 120315 in words is "one hundred twenty thousand, three hundred fifteen".

Divisors: 1 3 5 13 15 39 65 195 617 1851 3085 8021 9255 24063 40105 120315