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11797303891 = 157490915307
BaseRepresentation
bin10101111110010110…
…01001001001010011
31010110011201010120011
422333023021021103
5143130102211031
65230345055351
7565230266662
oct127713111123
933404633504
1011797303891
1150042a802a
122352a87557
1311601752b9
147dcb36dd9
15490a826b1
hex2bf2c9253

11797303891 has 8 divisors (see below), whose sum is σ = 11875640240. Its totient is φ = 11719008288.

The previous prime is 11797303841. The next prime is 11797303897. The reversal of 11797303891 is 19830379711.

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

It is a cyclic number.

It is not a de Polignac number, because 11797303891 - 227 = 11663086163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11797303897) 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, 763060 + ... + 778366.

It is an arithmetic number, because the mean of its divisors is an integer number (1484455030).

Almost surely, 211797303891 is an apocalyptic number.

11797303891 is a deficient number, since it is larger than the sum of its proper divisors (78336349).

11797303891 is a wasteful number, since it uses less digits than its factorization.

11797303891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20373.

The product of its (nonzero) digits is 285768, while the sum is 49.

The spelling of 11797303891 in words is "eleven billion, seven hundred ninety-seven million, three hundred three thousand, eight hundred ninety-one".

Divisors: 1 157 4909 15307 770713 2403199 75142063 11797303891