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122443133 = 294222177
BaseRepresentation
bin1110100110001…
…01010101111101
322112101202101212
413103011111331
5222321140013
620052214205
73014515031
oct723052575
9275352355
10122443133
116313037a
123500a365
131c4a0c77
14123941c1
15ab396a8
hex74c557d

122443133 has 4 divisors (see below), whose sum is σ = 126665340. Its totient is φ = 118220928.

The previous prime is 122443117. The next prime is 122443147. The reversal of 122443133 is 331344221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21279769 + 101163364 = 4613^2 + 10058^2 .

It is a cyclic number.

It is not a de Polignac number, because 122443133 - 24 = 122443117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122443099 and 122443108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122473133) 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, 2111060 + ... + 2111117.

It is an arithmetic number, because the mean of its divisors is an integer number (31666335).

Almost surely, 2122443133 is an apocalyptic number.

It is an amenable number.

122443133 is a deficient number, since it is larger than the sum of its proper divisors (4222207).

122443133 is an equidigital number, since it uses as much as digits as its factorization.

122443133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4222206.

The product of its digits is 1728, while the sum is 23.

The square root of 122443133 is about 11065.4025231801. The cubic root of 122443133 is about 496.5673315045.

Adding to 122443133 its reverse (331344221), we get a palindrome (453787354).

The spelling of 122443133 in words is "one hundred twenty-two million, four hundred forty-three thousand, one hundred thirty-three".

Divisors: 1 29 4222177 122443133