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26944957 = 137328393
BaseRepresentation
bin110011011001…
…0010110111101
31212200221112101
41212302112331
523344214312
62401305101
7445012504
oct146622675
955627471
1026944957
1114234166
129035191
135775580
14381583b
152573a57
hex19b25bd

26944957 has 8 divisors (see below), whose sum is σ = 29416184. Its totient is φ = 24530688.

The previous prime is 26944889. The next prime is 26944979. The reversal of 26944957 is 75944962.

It can be written as a sum of positive squares in 4 ways, for example, as 7284601 + 19660356 = 2699^2 + 4434^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-26944957 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 (26944157) 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, 13248 + ... + 15145.

It is an arithmetic number, because the mean of its divisors is an integer number (3677023).

Almost surely, 226944957 is an apocalyptic number.

It is an amenable number.

26944957 is a deficient number, since it is larger than the sum of its proper divisors (2471227).

26944957 is a wasteful number, since it uses less digits than its factorization.

26944957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28479.

The product of its digits is 544320, while the sum is 46.

The square root of 26944957 is about 5190.8532053989. The cubic root of 26944957 is about 299.7959983462.

The spelling of 26944957 in words is "twenty-six million, nine hundred forty-four thousand, nine hundred fifty-seven".

Divisors: 1 13 73 949 28393 369109 2072689 26944957