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68242147395 = 354549476493
BaseRepresentation
bin111111100011100011…
…001000100001000011
320112010220122021102120
4333203203020201003
52104224442204040
651203334015323
74634050452642
oct774343104103
9215126567376
1068242147395
1126a39a05424
12112861a7543
1365871c3696
143435391359
151b961307d0
hexfe38c8843

68242147395 has 8 divisors (see below), whose sum is σ = 109187435856. Its totient is φ = 36395811936.

The previous prime is 68242147387. The next prime is 68242147399. The reversal of 68242147395 is 59374124286.

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

It is not a de Polignac number, because 68242147395 - 23 = 68242147387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68242147399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2274738232 + ... + 2274738261.

It is an arithmetic number, because the mean of its divisors is an integer number (13648429482).

Almost surely, 268242147395 is an apocalyptic number.

68242147395 is a deficient number, since it is larger than the sum of its proper divisors (40945288461).

68242147395 is a wasteful number, since it uses less digits than its factorization.

68242147395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549476501.

The product of its digits is 2903040, while the sum is 51.

The spelling of 68242147395 in words is "sixty-eight billion, two hundred forty-two million, one hundred forty-seven thousand, three hundred ninety-five".

Divisors: 1 3 5 15 4549476493 13648429479 22747382465 68242147395