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8664127393 = 231847203953
BaseRepresentation
bin10000001000110110…
…00001011110100001
3211100211002021102011
420010123001132201
5120221004034033
63551422152521
7424463603425
oct100433013641
924324067364
108664127393
113746746169
121819722741
13a810024cc
145c2984b85
1535a983ccd
hex2046c17a1

8664127393 has 8 divisors (see below), whose sum is σ = 9045767808. Its totient is φ = 8282898624.

The previous prime is 8664127337. The next prime is 8664127427. The reversal of 8664127393 is 3937214668.

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-8664127393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8664121393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59496 + ... + 144457.

It is an arithmetic number, because the mean of its divisors is an integer number (1130720976).

Almost surely, 28664127393 is an apocalyptic number.

It is an amenable number.

8664127393 is a deficient number, since it is larger than the sum of its proper divisors (381640415).

8664127393 is a wasteful number, since it uses less digits than its factorization.

8664127393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205823.

The product of its digits is 1306368, while the sum is 49.

The square root of 8664127393 is about 93081.2945386988. The cubic root of 8664127393 is about 2053.8794192164.

The spelling of 8664127393 in words is "eight billion, six hundred sixty-four million, one hundred twenty-seven thousand, three hundred ninety-three".

Divisors: 1 23 1847 42481 203953 4690919 376701191 8664127393