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688813412683 = 11891036830959
BaseRepresentation
bin10100000011000000111…
…10101001000101001011
32102211221120221212211011
422001200132221011023
542241142213201213
61244234141544351
7100523303255224
oct12014036510513
92384846855734
10688813412683
1124614023a010
12b15b62750b7
134cc549a32c6
14254a574424b
1512db6e5d03d
hexa0607a914b

688813412683 has 16 divisors (see below), whose sum is σ = 767253427200. Its totient is φ = 613146790080.

The previous prime is 688813412669. The next prime is 688813412689. The reversal of 688813412683 is 386214318886.

It is a happy number.

It is not a de Polignac number, because 688813412683 - 221 = 688811315531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (688813412689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3314643 + ... + 3516316.

It is an arithmetic number, because the mean of its divisors is an integer number (47953339200).

Almost surely, 2688813412683 is an apocalyptic number.

688813412683 is a deficient number, since it is larger than the sum of its proper divisors (78440014517).

688813412683 is a wasteful number, since it uses less digits than its factorization.

688813412683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6831162.

The product of its digits is 10616832, while the sum is 58.

The spelling of 688813412683 in words is "six hundred eighty-eight billion, eight hundred thirteen million, four hundred twelve thousand, six hundred eighty-three".

Divisors: 1 11 89 103 979 1133 9167 100837 6830959 75140549 607955351 703588777 6687508861 7739476547 62619401153 688813412683