Search a number
-
+
122405133 = 343948877
BaseRepresentation
bin1110100101111…
…00000100001101
322112022211021110
413102330010031
5222313431013
620051322233
73014266164
oct722740415
9275284243
10122405133
1163104874
1234bb0379
131c489896
14123843db
15ab2d2c3
hex74bc10d

122405133 has 8 divisors (see below), whose sum is σ = 167002528. Its totient is φ = 79705584.

The previous prime is 122405093. The next prime is 122405137. The reversal of 122405133 is 331504221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122405133 - 224 = 105627917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122405137) 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 7 ways as a sum of consecutive naturals, for example, 474310 + ... + 474567.

It is an arithmetic number, because the mean of its divisors is an integer number (20875316).

Almost surely, 2122405133 is an apocalyptic number.

It is an amenable number.

122405133 is a deficient number, since it is larger than the sum of its proper divisors (44597395).

122405133 is an equidigital number, since it uses as much as digits as its factorization.

122405133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948923.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 122405133 is about 11063.6853263278. The cubic root of 122405133 is about 496.5159566049.

Adding to 122405133 its reverse (331504221), we get a palindrome (453909354).

The spelling of 122405133 in words is "one hundred twenty-two million, four hundred five thousand, one hundred thirty-three".

Divisors: 1 3 43 129 948877 2846631 40801711 122405133