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122340 = 22352039
BaseRepresentation
bin11101110111100100
320012211010
4131313210
512403330
62342220
71016451
oct356744
9205733
10122340
1183a09
125a970
13438ba
1432828
15263b0
hex1dde4

122340 has 24 divisors (see below), whose sum is σ = 342720. Its totient is φ = 32608.

The previous prime is 122327. The next prime is 122347. The reversal of 122340 is 43221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (122347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 960 + ... + 1079.

It is an arithmetic number, because the mean of its divisors is an integer number (14280).

2122340 is an apocalyptic number.

122340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122340 is an abundant number, since it is smaller than the sum of its proper divisors (220380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122340 is a wasteful number, since it uses less digits than its factorization.

122340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2049 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 122340 is about 349.7713538871. The cubic root of 122340 is about 49.6427873938.

Adding to 122340 its reverse (43221), we get a palindrome (165561).

The spelling of 122340 in words is "one hundred twenty-two thousand, three hundred forty", and thus it is an iban number.

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2039 4078 6117 8156 10195 12234 20390 24468 30585 40780 61170 122340