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22401313 = 1131179367
BaseRepresentation
bin101010101110…
…1000100100001
31120011002211021
41111131010201
521213320223
62120045441
7361256644
oct125350441
946132737
1022401313
1111710490
127603881
13484441c
142d91a5b
151e7765d
hex155d121

22401313 has 16 divisors (see below), whose sum is σ = 25436160. Its totient is φ = 19544400.

The previous prime is 22401299. The next prime is 22401331. The reversal of 22401313 is 31310422.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22401313 - 221 = 20304161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22401713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60856 + ... + 61222.

It is an arithmetic number, because the mean of its divisors is an integer number (1589760).

Almost surely, 222401313 is an apocalyptic number.

It is an amenable number.

22401313 is a deficient number, since it is larger than the sum of its proper divisors (3034847).

22401313 is a wasteful number, since it uses less digits than its factorization.

22401313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 22401313 is about 4733.0025353891. The cubic root of 22401313 is about 281.8974569745.

Adding to 22401313 its reverse (31310422), we get a palindrome (53711735).

It can be divided in two parts, 2240 and 1313, that added together give a palindrome (3553).

The spelling of 22401313 in words is "twenty-two million, four hundred one thousand, three hundred thirteen".

Divisors: 1 11 31 179 341 367 1969 4037 5549 11377 61039 65693 125147 722623 2036483 22401313