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26808007 = 591134021
BaseRepresentation
bin110011001000…
…0111011000111
31212102222200011
41212100323013
523330324012
62354331051
7443602312
oct146207307
955388604
1026808007
1114150286
128b89a87
135728135
1437bb979
1525481a7
hex1990ec7

26808007 has 8 divisors (see below), whose sum is σ = 27510480. Its totient is φ = 26113920.

The previous prime is 26807981. The next prime is 26808029. The reversal of 26808007 is 70080862.

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 26808007 - 211 = 26805959 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 26808007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26808037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4657 + ... + 8677.

It is an arithmetic number, because the mean of its divisors is an integer number (3438810).

Almost surely, 226808007 is an apocalyptic number.

26808007 is a deficient number, since it is larger than the sum of its proper divisors (702473).

26808007 is a wasteful number, since it uses less digits than its factorization.

26808007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 26808007 is about 5177.6449279571. The cubic root of 26808007 is about 299.2872226509.

Adding to 26808007 its reverse (70080862), we get a palindrome (96888869).

The spelling of 26808007 in words is "twenty-six million, eight hundred eight thousand, seven".

Divisors: 1 59 113 4021 6667 237239 454373 26808007