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6999130319 = 64853107923
BaseRepresentation
bin1101000010010111…
…00100000011001111
3200001210002122210212
412201023210003033
5103313234132234
63114303353035
7335305424516
oct64113440317
920053078725
106999130319
112a71910225
121433bb277b
1387709013c
144a57b167d
152ae6e65ce
hex1a12e40cf

6999130319 has 4 divisors (see below), whose sum is σ = 6999303096. Its totient is φ = 6998957544.

The previous prime is 6999130267. The next prime is 6999130343. The reversal of 6999130319 is 9130319996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6999130319 - 220 = 6998081743 is a prime.

It is a super-2 number, since 2×69991303192 = 97975650444690083522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6999130399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10892 + ... + 118814.

It is an arithmetic number, because the mean of its divisors is an integer number (1749825774).

Almost surely, 26999130319 is an apocalyptic number.

6999130319 is a deficient number, since it is larger than the sum of its proper divisors (172777).

6999130319 is a wasteful number, since it uses less digits than its factorization.

6999130319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172776.

The product of its (nonzero) digits is 354294, while the sum is 50.

The square root of 6999130319 is about 83660.8051539070. The cubic root of 6999130319 is about 1912.8519585435.

The spelling of 6999130319 in words is "six billion, nine hundred ninety-nine million, one hundred thirty thousand, three hundred nineteen".

Divisors: 1 64853 107923 6999130319