Base | Representation |
---|---|
bin | 111111010001111111… |
… | …010101010100110000 |
3 | 20111101101022011202221 |
4 | 333101333111110300 |
5 | 2103124033100000 |
6 | 51114211450424 |
7 | 4623542434261 |
oct | 772177252460 |
9 | 214341264687 |
10 | 67947550000 |
11 | 268a8691000 |
12 | 112035b6a14 |
13 | 653b1679b5 |
14 | 34081c6968 |
15 | 1b7a33c61a |
hex | fd1fd5530 |
67947550000 has 240 divisors, whose sum is σ = 181169841888. Its totient is φ = 24684000000.
The previous prime is 67947549949. The next prime is 67947550003. The reversal of 67947550000 is 5574976.
It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67947550003) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66549490 + ... + 66550510.
Almost surely, 267947550000 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 67947550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90584920944).
67947550000 is an abundant number, since it is smaller than the sum of its proper divisors (113222291888).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67947550000 is an equidigital number, since it uses as much as digits as its factorization.
67947550000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1087 (or 1039 counting only the distinct ones).
The product of its (nonzero) digits is 264600, while the sum is 43.
The spelling of 67947550000 in words is "sixty-seven billion, nine hundred forty-seven million, five hundred fifty thousand".
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