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8013888517 = 109263279551
BaseRepresentation
bin1110111011010101…
…00011110000000101
3202200111112201100211
413131222203300011
5112403023413032
63403113235421
7402406633315
oct73552436005
922614481324
108013888517
1134426a4068
121677a02b71
139a939688b
14560481445
1531d840747
hex1ddaa3c05

8013888517 has 8 divisors (see below), whose sum is σ = 8118190080. Its totient is φ = 7910146800.

The previous prime is 8013888503. The next prime is 8013888527. The reversal of 8013888517 is 7158883108.

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-8013888517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8013888527) 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, 111109 + ... + 168442.

It is an arithmetic number, because the mean of its divisors is an integer number (1014773760).

Almost surely, 28013888517 is an apocalyptic number.

It is an amenable number.

8013888517 is a deficient number, since it is larger than the sum of its proper divisors (104301563).

8013888517 is a wasteful number, since it uses less digits than its factorization.

8013888517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279923.

The product of its (nonzero) digits is 430080, while the sum is 49.

The square root of 8013888517 is about 89520.3246028521. The cubic root of 8013888517 is about 2001.1567073018.

The spelling of 8013888517 in words is "eight billion, thirteen million, eight hundred eighty-eight thousand, five hundred seventeen".

Divisors: 1 109 263 28667 279551 30471059 73521913 8013888517