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5291372779 = 71168719127
BaseRepresentation
bin1001110110110001…
…11111000011101011
3111122202122120212121
410323120333003223
541314042412104
62233020252111
7245060632540
oct47330770353
914582576777
105291372779
112275929760
1210380a1037
13664328914
14382a6abc7
1520e80e254
hex13b63f0eb

5291372779 has 8 divisors (see below), whose sum is σ = 6597036288. Its totient is φ = 4123147560.

The previous prime is 5291372761. The next prime is 5291372851. The reversal of 5291372779 is 9772731925.

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

It is not a de Polignac number, because 5291372779 - 217 = 5291241707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5291372759) 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, 34359487 + ... + 34359640.

It is an arithmetic number, because the mean of its divisors is an integer number (824629536).

Almost surely, 25291372779 is an apocalyptic number.

5291372779 is a deficient number, since it is larger than the sum of its proper divisors (1305663509).

5291372779 is a wasteful number, since it uses less digits than its factorization.

5291372779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68719145.

The product of its digits is 1666980, while the sum is 52.

The square root of 5291372779 is about 72741.8227637994. The cubic root of 5291372779 is about 1742.5668701759.

The spelling of 5291372779 in words is "five billion, two hundred ninety-one million, three hundred seventy-two thousand, seven hundred seventy-nine".

Divisors: 1 7 11 77 68719127 481033889 755910397 5291372779