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122323121 = 196438059
BaseRepresentation
bin1110100101010…
…00000010110001
322112011122202222
413102220002301
5222303314441
620045450425
73013505114
oct722500261
9275148688
10122323121
1163059198
1234b70a15
131c45b45b
141236257b
15ab13d4b
hex74a80b1

122323121 has 4 divisors (see below), whose sum is σ = 128761200. Its totient is φ = 115885044.

The previous prime is 122323081. The next prime is 122323127. The reversal of 122323121 is 121323221.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122323121 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 122323121.

It is not an unprimeable number, because it can be changed into a prime (122323127) 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 3 ways as a sum of consecutive naturals, for example, 3219011 + ... + 3219048.

It is an arithmetic number, because the mean of its divisors is an integer number (32190300).

Almost surely, 2122323121 is an apocalyptic number.

It is an amenable number.

122323121 is a deficient number, since it is larger than the sum of its proper divisors (6438079).

122323121 is an equidigital number, since it uses as much as digits as its factorization.

122323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6438078.

The product of its digits is 144, while the sum is 17.

The square root of 122323121 is about 11059.9783453676. The cubic root of 122323121 is about 496.4050425082.

Adding to 122323121 its reverse (121323221), we get a palindrome (243646342).

The spelling of 122323121 in words is "one hundred twenty-two million, three hundred twenty-three thousand, one hundred twenty-one".

Divisors: 1 19 6438059 122323121