Base | Representation |
---|---|
bin | 11111010000111000010000… |
… | …11111110001101001101000 |
3 | 100000102101221200120210122000 |
4 | 33220130020133301221220 |
5 | 33002343323104222012 |
6 | 402115100245331000 |
7 | 20324000155323510 |
oct | 1750341037615150 |
9 | 300371850523560 |
10 | 68749684054632 |
11 | 1a9a6639391609 |
12 | 7864196106a60 |
13 | 2c490b508a779 |
14 | 12d9706a86840 |
15 | 7e350c856ddc |
hex | 3e87087f1a68 |
68749684054632 has 128 divisors (see below), whose sum is σ = 229739963520000. Its totient is φ = 18608937029568.
The previous prime is 68749684054547. The next prime is 68749684054637. The reversal of 68749684054632 is 23645048694786.
68749684054632 is a `hidden beast` number, since 6 + 8 + 7 + 4 + 9 + 6 + 8 + 40 + 546 + 32 = 666.
68749684054632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×687496840546322 (a number of 28 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (72).
It is not an unprimeable number, because it can be changed into a prime (68749684054637) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1196533582 + ... + 1196591037.
It is an arithmetic number, because the mean of its divisors is an integer number (1794843465000).
Almost surely, 268749684054632 is an apocalyptic number.
It is an amenable number.
68749684054632 is an abundant number, since it is smaller than the sum of its proper divisors (160990279465368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68749684054632 is a wasteful number, since it uses less digits than its factorization.
68749684054632 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2393124660 (or 2393124650 counting only the distinct ones).
The product of its (nonzero) digits is 1672151040, while the sum is 72.
The spelling of 68749684054632 in words is "sixty-eight trillion, seven hundred forty-nine billion, six hundred eighty-four million, fifty-four thousand, six hundred thirty-two".
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