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4971026291 = 71164558783
BaseRepresentation
bin1001010000100101…
…11101011101110011
3110211102212022002212
410220102331131303
540140040320131
62141134202335
7234121012010
oct45022753563
913742768085
104971026291
1121210186a0
12b689533ab
13612b55a9a
143522bc707
151e1631a2b
hex1284bd773

4971026291 has 8 divisors (see below), whose sum is σ = 6197643264. Its totient is φ = 3873526920.

The previous prime is 4971026261. The next prime is 4971026303. The reversal of 4971026291 is 1926201794.

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-4971026291 is a prime.

It is a super-2 number, since 2×49710262912 = 49422204771626433362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4971026251) 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, 32279315 + ... + 32279468.

It is an arithmetic number, because the mean of its divisors is an integer number (774705408).

Almost surely, 24971026291 is an apocalyptic number.

4971026291 is a deficient number, since it is larger than the sum of its proper divisors (1226616973).

4971026291 is a wasteful number, since it uses less digits than its factorization.

4971026291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64558801.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 4971026291 is about 70505.5053949690. The cubic root of 4971026291 is about 1706.6665897666. Note that the first 3 decimals are identical.

The spelling of 4971026291 in words is "four billion, nine hundred seventy-one million, twenty-six thousand, two hundred ninety-one".

Divisors: 1 7 11 77 64558783 451911481 710146613 4971026291