Base | Representation |
---|---|
bin | 111111010110101100… |
… | …000001101100011000 |
3 | 20111120212121220021000 |
4 | 333112230001230120 |
5 | 2103304222444221 |
6 | 51130105145000 |
7 | 4625520434502 |
oct | 772654015430 |
9 | 214525556230 |
10 | 68026374936 |
11 | 2693912a383 |
12 | 11225a8b160 |
13 | 65515a6280 |
14 | 3414864d72 |
15 | 1b8220ce26 |
hex | fd6b01b18 |
68026374936 has 128 divisors (see below), whose sum is σ = 203971320000. Its totient is φ = 20882479104.
The previous prime is 68026374931. The next prime is 68026374961. The reversal of 68026374936 is 63947362086.
68026374936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68026374931) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1187890 + ... + 1243838.
Almost surely, 268026374936 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68026374936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101985660000).
68026374936 is an abundant number, since it is smaller than the sum of its proper divisors (135944945064).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68026374936 is a wasteful number, since it uses less digits than its factorization.
68026374936 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56410 (or 56400 counting only the distinct ones).
The product of its (nonzero) digits is 7838208, while the sum is 54.
The spelling of 68026374936 in words is "sixty-eight billion, twenty-six million, three hundred seventy-four thousand, nine hundred thirty-six".
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