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122965 = 524593
BaseRepresentation
bin11110000001010101
320020200021
4132001111
512413330
62345141
71021333
oct360125
9206607
10122965
1184427
125b1b1
1343c7b
1432b53
152667a
hex1e055

122965 has 4 divisors (see below), whose sum is σ = 147564. Its totient is φ = 98368.

The previous prime is 122963. The next prime is 122971. The reversal of 122965 is 569221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 569221 = 1929959.

It can be written as a sum of positive squares in 2 ways, for example, as 26244 + 96721 = 162^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 122965 - 21 = 122963 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122963) 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, 12292 + ... + 12301.

It is an arithmetic number, because the mean of its divisors is an integer number (36891).

2122965 is an apocalyptic number.

It is an amenable number.

122965 is a deficient number, since it is larger than the sum of its proper divisors (24599).

122965 is an equidigital number, since it uses as much as digits as its factorization.

122965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24598.

The product of its digits is 1080, while the sum is 25.

The square root of 122965 is about 350.6636565143. The cubic root of 122965 is about 49.7271807675.

The spelling of 122965 in words is "one hundred twenty-two thousand, nine hundred sixty-five".

Divisors: 1 5 24593 122965