Base | Representation |
---|---|
bin | 111111100101101001… |
… | …111000110010000000 |
3 | 20112020101002222012111 |
4 | 333211221320302000 |
5 | 2104313013104014 |
6 | 51211035105104 |
7 | 4634656640152 |
oct | 774551706200 |
9 | 215211088174 |
10 | 68277472384 |
11 | 26a57942630 |
12 | 11295ba2194 |
13 | 6591611344 |
14 | 3439d48ad2 |
15 | 1b992ac2c4 |
hex | fe5a78c80 |
68277472384 has 128 divisors (see below), whose sum is σ = 151016140800. Its totient is φ = 30487987200.
The previous prime is 68277472357. The next prime is 68277472387. The reversal of 68277472384 is 48327477286.
68277472384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (128).
It is not an unprimeable number, because it can be changed into a prime (68277472387) 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, 45186189 + ... + 45187699.
It is an arithmetic number, because the mean of its divisors is an integer number (1179813600).
Almost surely, 268277472384 is an apocalyptic number.
68277472384 is a gapful number since it is divisible by the number (64) 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 68277472384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75508070400).
68277472384 is an abundant number, since it is smaller than the sum of its proper divisors (82738668416).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68277472384 is a wasteful number, since it uses less digits than its factorization.
68277472384 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2082 (or 2070 counting only the distinct ones).
The product of its digits is 25288704, while the sum is 58.
The spelling of 68277472384 in words is "sixty-eight billion, two hundred seventy-seven million, four hundred seventy-two thousand, three hundred eighty-four".
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