| Base | Representation |
|---|---|
| bin | 100111001011001010… |
| … | …0110000001100000000 |
| 3 | 22001010220122222102000 |
| 4 | 1032112110300030000 |
| 5 | 2334242324320110 |
| 6 | 102351440424000 |
| 7 | 6035505420015 |
| oct | 1162624601400 |
| 9 | 261126588360 |
| 10 | 84126401280 |
| 11 | 32750184479 |
| 12 | 14379918000 |
| 13 | 7c18cb1c8c |
| 14 | 4100bd370c |
| 15 | 22c58b11c0 |
| hex | 1396530300 |
84126401280 has 864 divisors, whose sum is σ = 328810104000. Its totient is φ = 20295843840.
The previous prime is 84126401279. The next prime is 84126401287. The reversal of 84126401280 is 8210462148.
84126401280 is a `hidden beast` number, since 8 + 4 + 1 + 2 + 640 + 1 + 2 + 8 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (864).
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (84126401287) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 564606646 + ... + 564606794.
It is an arithmetic number, because the mean of its divisors is an integer number (380567250).
Almost surely, 284126401280 is an apocalyptic number.
84126401280 is a gapful number since it is divisible by the number (80) 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 84126401280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164405052000).
84126401280 is an abundant number, since it is smaller than the sum of its proper divisors (244683702720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
84126401280 is a wasteful number, since it uses less digits than its factorization.
84126401280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 258 (or 207 counting only the distinct ones).
The product of its (nonzero) digits is 24576, while the sum is 36.
The spelling of 84126401280 in words is "eighty-four billion, one hundred twenty-six million, four hundred one thousand, two hundred eighty".
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