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26808223 = 1310918919
BaseRepresentation
bin110011001000…
…0111110011111
31212102222222011
41212100332133
523330330343
62354332051
7443603041
oct146207637
955388864
1026808223
1114150462
128b8a027
135728270
1437bba91
15254829d
hex1990f9f

26808223 has 8 divisors (see below), whose sum is σ = 29136800. Its totient is φ = 24517728.

The previous prime is 26808217. The next prime is 26808227. The reversal of 26808223 is 32280862.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-26808223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26808227) 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, 8043 + ... + 10876.

It is an arithmetic number, because the mean of its divisors is an integer number (3642100).

Almost surely, 226808223 is an apocalyptic number.

26808223 is a deficient number, since it is larger than the sum of its proper divisors (2328577).

26808223 is a wasteful number, since it uses less digits than its factorization.

26808223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19041.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 26808223 is about 5177.6657868194. The cubic root of 26808223 is about 299.2880264638.

The spelling of 26808223 in words is "twenty-six million, eight hundred eight thousand, two hundred twenty-three".

Divisors: 1 13 109 1417 18919 245947 2062171 26808223