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22050431 = 131989273
BaseRepresentation
bin101010000011…
…1011001111111
31112111021111122
41110013121333
521121103211
62104341155
7355265654
oct124073177
945437448
1022050431
11114a08a7
1274747bb
1347507c0
142cddc2b
151e086db
hex150767f

22050431 has 8 divisors (see below), whose sum is σ = 24996720. Its totient is φ = 19282752.

The previous prime is 22050419. The next prime is 22050433. The reversal of 22050431 is 13405022.

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

It is a cyclic number.

It is not a de Polignac number, because 22050431 - 26 = 22050367 is a prime.

It is a super-2 number, since 2×220504312 = 972443014571522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22050433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44390 + ... + 44883.

It is an arithmetic number, because the mean of its divisors is an integer number (3124590).

Almost surely, 222050431 is an apocalyptic number.

22050431 is a deficient number, since it is larger than the sum of its proper divisors (2946289).

22050431 is a wasteful number, since it uses less digits than its factorization.

22050431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89305.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22050431 is about 4695.7886451586. The cubic root of 22050431 is about 280.4178751977.

Adding to 22050431 its reverse (13405022), we get a palindrome (35455453).

The spelling of 22050431 in words is "twenty-two million, fifty thousand, four hundred thirty-one".

Divisors: 1 13 19 247 89273 1160549 1696187 22050431