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122204401 = 1111109491
BaseRepresentation
bin1110100100010…
…11000011110001
322111221121220221
413102023003301
5222241020101
620043133041
73012502024
oct722130361
9274847827
10122204401
1162a87a80
1234b14181
131c4193c7
14123311bb
15aaddaa1
hex748b0f1

122204401 has 4 divisors (see below), whose sum is σ = 133313904. Its totient is φ = 111094900.

The previous prime is 122204393. The next prime is 122204413. The reversal of 122204401 is 104402221.

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 not a de Polignac number, because 122204401 - 23 = 122204393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122204441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5554735 + ... + 5554756.

It is an arithmetic number, because the mean of its divisors is an integer number (33328476).

Almost surely, 2122204401 is an apocalyptic number.

122204401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122204401 is a deficient number, since it is larger than the sum of its proper divisors (11109503).

122204401 is a wasteful number, since it uses less digits than its factorization.

122204401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11109502.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 122204401 is about 11054.6099433675. The cubic root of 122204401 is about 496.2443961747.

Adding to 122204401 its reverse (104402221), we get a palindrome (226606622).

The spelling of 122204401 in words is "one hundred twenty-two million, two hundred four thousand, four hundred one".

Divisors: 1 11 11109491 122204401