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122312 = 2315289
BaseRepresentation
bin11101110111001000
320012210002
4131313020
512403222
62342132
71016411
oct356710
9205702
10122312
1183993
125a948
1343898
1432808
1526392
hex1ddc8

122312 has 8 divisors (see below), whose sum is σ = 229350. Its totient is φ = 61152.

The previous prime is 122299. The next prime is 122321. The reversal of 122312 is 213221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 98596 + 23716 = 314^2 + 154^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 122293 and 122302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7637 + ... + 7652.

2122312 is an apocalyptic number.

It is an amenable number.

122312 is a deficient number, since it is larger than the sum of its proper divisors (107038).

122312 is a wasteful number, since it uses less digits than its factorization.

122312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15295 (or 15291 counting only the distinct ones).

The product of its digits is 24, while the sum is 11.

The square root of 122312 is about 349.7313254486. The cubic root of 122312 is about 49.6389998506.

Adding to 122312 its reverse (213221), we get a palindrome (335533).

Subtracting 122312 from its reverse (213221), we obtain a palindrome (90909).

It can be divided in two parts, 122 and 312, that added together give a palindrome (434).

The spelling of 122312 in words is "one hundred twenty-two thousand, three hundred twelve", and thus it is an iban number.

Divisors: 1 2 4 8 15289 30578 61156 122312