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5291382791 = 79109761057
BaseRepresentation
bin1001110110110010…
…00001100000000111
3111122202200002121102
410323121001200013
541314043222131
62233020410315
7245061003662
oct47331014007
914582602542
105291382791
112275936232
1210380a699b
13664330346
14382a706d9
1520e8121cb
hex13b641807

5291382791 has 8 divisors (see below), whose sum is σ = 5363334720. Its totient is φ = 5219555328.

The previous prime is 5291382769. The next prime is 5291382793. The reversal of 5291382791 is 1972831925.

It is a happy number.

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-5291382791 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 (5291382793) 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, 56135 + ... + 117191.

It is an arithmetic number, because the mean of its divisors is an integer number (670416840).

Almost surely, 25291382791 is an apocalyptic number.

5291382791 is a deficient number, since it is larger than the sum of its proper divisors (71951929).

5291382791 is a wasteful number, since it uses less digits than its factorization.

5291382791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62233.

The product of its digits is 272160, while the sum is 47.

The square root of 5291382791 is about 72741.8915824987. The cubic root of 5291382791 is about 1742.5679692334.

The spelling of 5291382791 in words is "five billion, two hundred ninety-one million, three hundred eighty-two thousand, seven hundred ninety-one".

Divisors: 1 79 1097 61057 86663 4823503 66979529 5291382791