Base | Representation |
---|---|
bin | 111111100001001000… |
… | …000010011111011111 |
3 | 20112001002010200111220 |
4 | 333201020002133133 |
5 | 2104134040143044 |
6 | 51155322344423 |
7 | 4633045050300 |
oct | 774110023737 |
9 | 215032120456 |
10 | 68201490399 |
11 | 26a18a661a9 |
12 | 1127465b113 |
13 | 657b959aa3 |
14 | 342dc0a7a7 |
15 | 1b9279e019 |
hex | fe12027df |
68201490399 has 24 divisors (see below), whose sum is σ = 109429562160. Its totient is φ = 37628406144.
The previous prime is 68201490389. The next prime is 68201490407. The reversal of 68201490399 is 99309410286.
It is not a de Polignac number, because 68201490399 - 27 = 68201490271 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68201490319) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7994974 + ... + 8003499.
It is an arithmetic number, because the mean of its divisors is an integer number (4559565090).
Almost surely, 268201490399 is an apocalyptic number.
68201490399 is a deficient number, since it is larger than the sum of its proper divisors (41228071761).
68201490399 is a wasteful number, since it uses less digits than its factorization.
68201490399 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15998519 (or 15998512 counting only the distinct ones).
The product of its (nonzero) digits is 839808, while the sum is 51.
The spelling of 68201490399 in words is "sixty-eight billion, two hundred one million, four hundred ninety thousand, three hundred ninety-nine".
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