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26853013 = 111728447
BaseRepresentation
bin110011001101…
…1111010010101
31212112021102001
41212123322111
523333244023
62355315301
7444150445
oct146337225
955467361
1026853013
1114181080
128babb31
135742775
1437d0125
1525566ad
hex199be95

26853013 has 12 divisors (see below), whose sum is σ = 31122432. Its totient is φ = 22973120.

The previous prime is 26853011. The next prime is 26853019. The reversal of 26853013 is 31035862.

It is not a de Polignac number, because 26853013 - 21 = 26853011 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26853011) 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, 1045 + ... + 7402.

It is an arithmetic number, because the mean of its divisors is an integer number (2593536).

Almost surely, 226853013 is an apocalyptic number.

It is an amenable number.

26853013 is a deficient number, since it is larger than the sum of its proper divisors (4269419).

26853013 is a wasteful number, since it uses less digits than its factorization.

26853013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8492 (or 8475 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 26853013 is about 5181.9892898384. The cubic root of 26853013 is about 299.4546128139.

Adding to 26853013 its reverse (31035862), we get a palindrome (57888875).

The spelling of 26853013 in words is "twenty-six million, eight hundred fifty-three thousand, thirteen".

Divisors: 1 11 17 187 289 3179 8447 92917 143599 1579589 2441183 26853013