Base | Representation |
---|---|
bin | 100000000011010000… |
… | …0111000011111000000 |
3 | 20120122210110021122100 |
4 | 1000012200320133000 |
5 | 2111430130310000 |
6 | 51341451110400 |
7 | 4654432543530 |
oct | 1000640703700 |
9 | 216583407570 |
10 | 68828760000 |
11 | 2721004a130 |
12 | 1140a742400 |
13 | 664b8b2930 |
14 | 348d2514c0 |
15 | 1bcc8a6a00 |
hex | 10068387c0 |
68828760000 has 1680 divisors, whose sum is σ = 332735090688. Its totient is φ = 13132800000.
The previous prime is 68828759981. The next prime is 68828760017. The reversal of 68828760000 is 6782886.
It is a tau number, because it is divible by the number of its divisors (1680).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 360359905 + ... + 360360095.
Almost surely, 268828760000 is an apocalyptic number.
68828760000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68828760000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166367545344).
68828760000 is an abundant number, since it is smaller than the sum of its proper divisors (263906330688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68828760000 is a wasteful number, since it uses less digits than its factorization.
68828760000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 260 (or 232 counting only the distinct ones).
The product of its (nonzero) digits is 258048, while the sum is 45.
It can be divided in two parts, 68828 and 760000, that added together give a palindrome (828828).
The spelling of 68828760000 in words is "sixty-eight billion, eight hundred twenty-eight million, seven hundred sixty thousand".
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