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22414412421 = 34276721141
BaseRepresentation
bin10100111000000000…
…001100101010000101
32010212002200010110000
4110320000030222011
5331401042144141
614144054351513
71422310235112
oct247000145205
963762603400
1022414412421
119562395895
12441665b599
13216296b63b
141128c17909
158b2bdc5b6
hex53800ca85

22414412421 has 10 divisors (see below), whose sum is σ = 33483258182. Its totient is φ = 14942941560.

The previous prime is 22414412401. The next prime is 22414412437. The reversal of 22414412421 is 12421441422.

22414412421 is a `hidden beast` number, since 2 + 2 + 414 + 4 + 1 + 242 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18336951396 + 4077461025 = 135414^2 + 63855^2 .

It is not a de Polignac number, because 22414412421 - 215 = 22414379653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22414412401) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 138360490 + ... + 138360651.

Almost surely, 222414412421 is an apocalyptic number.

It is an amenable number.

22414412421 is a deficient number, since it is larger than the sum of its proper divisors (11068845761).

22414412421 is an equidigital number, since it uses as much as digits as its factorization.

22414412421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276721153 (or 276721144 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

Adding to 22414412421 its reverse (12421441422), we get a palindrome (34835853843).

The spelling of 22414412421 in words is "twenty-two billion, four hundred fourteen million, four hundred twelve thousand, four hundred twenty-one".

Divisors: 1 3 9 27 81 276721141 830163423 2490490269 7471470807 22414412421