Base | Representation |
---|---|
bin | 111111110100110001… |
… | …011010011001000100 |
3 | 20112220001100202102010 |
4 | 333310301122121010 |
5 | 2110322430301200 |
6 | 51252135214220 |
7 | 4644156523662 |
oct | 776461323104 |
9 | 215801322363 |
10 | 68531103300 |
11 | 27078026260 |
12 | 11346b17370 |
13 | 66020255ca |
14 | 34618cbc32 |
15 | 1bb16ac150 |
hex | ff4c5a644 |
68531103300 has 144 divisors (see below), whose sum is σ = 217110104064. Its totient is φ = 16552080000.
The previous prime is 68531103271. The next prime is 68531103317. The reversal of 68531103300 is 330113586.
It is a Harshad number since it is a multiple of its sum of digits (30).
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 47 ways as a sum of consecutive naturals, for example, 855985 + ... + 932615.
It is an arithmetic number, because the mean of its divisors is an integer number (1507709056).
Almost surely, 268531103300 is an apocalyptic number.
68531103300 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 68531103300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108555052032).
68531103300 is an abundant number, since it is smaller than the sum of its proper divisors (148579000764).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68531103300 is a wasteful number, since it uses less digits than its factorization.
68531103300 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 76930 (or 76923 counting only the distinct ones).
The product of its (nonzero) digits is 6480, while the sum is 30.
Adding to 68531103300 its reverse (330113586), we get a palindrome (68861216886).
The spelling of 68531103300 in words is "sixty-eight billion, five hundred thirty-one million, one hundred three thousand, three hundred".
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