Base | Representation |
---|---|
bin | 111111010010100101… |
… | …111010100100101000 |
3 | 20111102002100000122000 |
4 | 333102211322210220 |
5 | 2103134130222130 |
6 | 51115212331000 |
7 | 4624024420260 |
oct | 772245724450 |
9 | 214362300560 |
10 | 67957664040 |
11 | 26903369912 |
12 | 11206a73a60 |
13 | 6540299436 |
14 | 340969a7a0 |
15 | 1b7b189260 |
hex | fd297a928 |
67957664040 has 512 divisors, whose sum is σ = 274240512000. Its totient is φ = 14622363648.
The previous prime is 67957664029. The next prime is 67957664053. The reversal of 67957664040 is 4046675976.
67957664040 is a `hidden beast` number, since 6 + 7 + 9 + 576 + 64 + 0 + 4 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 23986464 + ... + 23989296.
It is an arithmetic number, because the mean of its divisors is an integer number (535626000).
Almost surely, 267957664040 is an apocalyptic number.
67957664040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 67957664040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137120256000).
67957664040 is an abundant number, since it is smaller than the sum of its proper divisors (206282847960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67957664040 is a wasteful number, since it uses less digits than its factorization.
67957664040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3046 (or 3036 counting only the distinct ones).
The product of its (nonzero) digits is 7620480, while the sum is 54.
The spelling of 67957664040 in words is "sixty-seven billion, nine hundred fifty-seven million, six hundred sixty-four thousand, forty".
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