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26438922809 = 132388424491
BaseRepresentation
bin11000100111111000…
…011111001000111001
32112020120111102211022
4120213320133020321
5413121331012214
620051301512225
71624116064415
oct304770371071
975216442738
1026438922809
11102380a0032
12515a412675
132654692430
1413cb50bd45
15a4b1a4d8e
hex627e1f239

26438922809 has 8 divisors (see below), whose sum is σ = 29710629312. Its totient is φ = 23344065360.

The previous prime is 26438922803. The next prime is 26438922823. The reversal of 26438922809 is 90822983462.

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 26438922809 - 28 = 26438922553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26438922803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44211947 + ... + 44212544.

It is an arithmetic number, because the mean of its divisors is an integer number (3713828664).

Almost surely, 226438922809 is an apocalyptic number.

It is an amenable number.

26438922809 is a deficient number, since it is larger than the sum of its proper divisors (3271706503).

26438922809 is a wasteful number, since it uses less digits than its factorization.

26438922809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88424527.

The product of its (nonzero) digits is 2985984, while the sum is 53.

The spelling of 26438922809 in words is "twenty-six billion, four hundred thirty-eight million, nine hundred twenty-two thousand, eight hundred nine".

Divisors: 1 13 23 299 88424491 1149518383 2033763293 26438922809