Base | Representation |
---|---|
bin | 111111010101100010… |
… | …010001010010000110 |
3 | 20111112112020120220020 |
4 | 333111202101102012 |
5 | 2103234300241014 |
6 | 51124134520010 |
7 | 4625164206015 |
oct | 772542212206 |
9 | 214475216806 |
10 | 68007040134 |
11 | 26929223900 |
12 | 1121b506006 |
13 | 654a596867 |
14 | 3412070a7c |
15 | 1b8068e1a9 |
hex | fd5891486 |
68007040134 has 48 divisors (see below), whose sum is σ = 149780290800. Its totient is φ = 20569982400.
The previous prime is 68007040103. The next prime is 68007040151. The reversal of 68007040134 is 43104070086.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a junction number, because it is equal to n+sod(n) for n = 68007040095 and 68007040104.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 306192 + ... + 479340.
It is an arithmetic number, because the mean of its divisors is an integer number (3120422725).
Almost surely, 268007040134 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68007040134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74890145400).
68007040134 is an abundant number, since it is smaller than the sum of its proper divisors (81773250666).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68007040134 is a wasteful number, since it uses less digits than its factorization.
68007040134 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 173717 (or 173706 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 33.
Multiplying 68007040134 by its sum of digits (33), we get a palindrome (2244232324422).
The spelling of 68007040134 in words is "sixty-eight billion, seven million, forty thousand, one hundred thirty-four".
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