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20414233 = 721373041
BaseRepresentation
bin100110111011…
…1111100011001
31102102011001201
41031313330121
520211223413
62005314201
7335342500
oct115677431
942364051
1020414233
1110583574
126a05961
1342c9b38
1429d5837
151bd39dd
hex1377f19

20414233 has 12 divisors (see below), whose sum is σ = 23928372. Its totient is φ = 17364480.

The previous prime is 20414203. The next prime is 20414243. The reversal of 20414233 is 33241402.

It can be written as a sum of positive squares in 2 ways, for example, as 16999129 + 3415104 = 4123^2 + 1848^2 .

It is not a de Polignac number, because 20414233 - 25 = 20414201 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 20414233.

It is not an unprimeable number, because it can be changed into a prime (20414203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5193 + ... + 8233.

It is an arithmetic number, because the mean of its divisors is an integer number (1994031).

Almost surely, 220414233 is an apocalyptic number.

It is an amenable number.

20414233 is a deficient number, since it is larger than the sum of its proper divisors (3514139).

20414233 is a wasteful number, since it uses less digits than its factorization.

20414233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192 (or 3185 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20414233 is about 4518.2112611077. The cubic root of 20414233 is about 273.3029728655.

Adding to 20414233 its reverse (33241402), we get a palindrome (53655635).

The spelling of 20414233 in words is "twenty million, four hundred fourteen thousand, two hundred thirty-three".

Divisors: 1 7 49 137 959 3041 6713 21287 149009 416617 2916319 20414233