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122113 = 196427
BaseRepresentation
bin11101110100000001
320012111201
4131310001
512401423
62341201
71016005
oct356401
9205451
10122113
1183822
125a801
1343774
1432705
15262ad
hex1dd01

122113 has 4 divisors (see below), whose sum is σ = 128560. Its totient is φ = 115668.

The previous prime is 122099. The next prime is 122117. The reversal of 122113 is 311221.

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: 311221 = 1392239.

It is a cyclic number.

It is not a de Polignac number, because 122113 - 25 = 122081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122113.

It is not an unprimeable number, because it can be changed into a prime (122117) 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, 3195 + ... + 3232.

It is an arithmetic number, because the mean of its divisors is an integer number (32140).

2122113 is an apocalyptic number.

It is an amenable number.

122113 is a deficient number, since it is larger than the sum of its proper divisors (6447).

122113 is an equidigital number, since it uses as much as digits as its factorization.

122113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446.

The product of its digits is 12, while the sum is 10.

The square root of 122113 is about 349.4467055217. The cubic root of 122113 is about 49.6120645730.

Adding to 122113 its reverse (311221), we get a palindrome (433334).

The spelling of 122113 in words is "one hundred twenty-two thousand, one hundred thirteen".

Divisors: 1 19 6427 122113