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679820189318 = 21119730357247
BaseRepresentation
bin10011110010010000111…
…00001101111010000110
32101222201211121210121022
421321020130031322012
542114232432024233
61240145521551142
7100054402160144
oct11711034157206
92358654553538
10679820189318
11242345857206
12ab9064a54b2
134c15075666a
1424c911b4594
1512a3c66e398
hex9e4870de86

679820189318 has 8 divisors (see below), whose sum is σ = 1019821389312. Its totient is φ = 339879726216.

The previous prime is 679820189267. The next prime is 679820189357. The reversal of 679820189318 is 813981028976.

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

It is a super-2 number, since 2×6798201893182 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15156230 + ... + 15201017.

It is an arithmetic number, because the mean of its divisors is an integer number (127477673664).

Almost surely, 2679820189318 is an apocalyptic number.

679820189318 is a deficient number, since it is larger than the sum of its proper divisors (340001199994).

679820189318 is a wasteful number, since it uses less digits than its factorization.

679820189318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30368446.

The product of its (nonzero) digits is 10450944, while the sum is 62.

The spelling of 679820189318 in words is "six hundred seventy-nine billion, eight hundred twenty million, one hundred eighty-nine thousand, three hundred eighteen".

Divisors: 1 2 11197 22394 30357247 60714494 339910094659 679820189318