Base | Representation |
---|---|
bin | 100000000001111111… |
… | …1011111111111101110 |
3 | 20120112211211221102100 |
4 | 1000003333133333232 |
5 | 2111333313021020 |
6 | 51333340235530 |
7 | 4653410134104 |
oct | 1000377377756 |
9 | 216484757370 |
10 | 68786454510 |
11 | 27199184414 |
12 | 113b853bba6 |
13 | 6642bbc8b7 |
14 | 348779bc74 |
15 | 1bc8ceba90 |
hex | 1003fdffee |
68786454510 has 96 divisors (see below), whose sum is σ = 191102820480. Its totient is φ = 17105624064.
The previous prime is 68786454439. The next prime is 68786454553. The reversal of 68786454510 is 1545468786.
68786454510 is a `hidden beast` number, since 6 + 8 + 7 + 86 + 4 + 545 + 10 = 666.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39462 + ... + 373001.
It is an arithmetic number, because the mean of its divisors is an integer number (1990654380).
Almost surely, 268786454510 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68786454510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95551410240).
68786454510 is an abundant number, since it is smaller than the sum of its proper divisors (122316365970).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68786454510 is a wasteful number, since it uses less digits than its factorization.
68786454510 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 412602 (or 412599 counting only the distinct ones).
The product of its (nonzero) digits is 6451200, while the sum is 54.
The spelling of 68786454510 in words is "sixty-eight billion, seven hundred eighty-six million, four hundred fifty-four thousand, five hundred ten".
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