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26949 = 313691
BaseRepresentation
bin110100101000101
31100222010
412211011
51330244
6324433
7141366
oct64505
940863
1026949
111927a
1213719
13c360
149b6d
157eb9
hex6945

26949 has 8 divisors (see below), whose sum is σ = 38752. Its totient is φ = 16560.

The previous prime is 26947. The next prime is 26951. The reversal of 26949 is 94962.

It is an interprime number because it is at equal distance from previous prime (26947) and next prime (26951).

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

It is not a de Polignac number, because 26949 - 21 = 26947 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307 + ... + 384.

It is an arithmetic number, because the mean of its divisors is an integer number (4844).

226949 is an apocalyptic number.

It is an amenable number.

26949 is a deficient number, since it is larger than the sum of its proper divisors (11803).

26949 is a wasteful number, since it uses less digits than its factorization.

26949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707.

The product of its digits is 3888, while the sum is 30.

The square root of 26949 is about 164.1615058410. The cubic root of 26949 is about 29.9810992056.

The spelling of 26949 in words is "twenty-six thousand, nine hundred forty-nine".

Divisors: 1 3 13 39 691 2073 8983 26949