Base | Representation |
---|---|
bin | 1011000110101111… |
… | …0010011100111110 |
3 | 21200202100211110000 |
4 | 2301223302130332 |
5 | 22101121433303 |
6 | 1211450055130 |
7 | 133605321303 |
oct | 26153623476 |
9 | 7622324400 |
10 | 2981046078 |
11 | 129a7a504a |
12 | 6b241a4a6 |
13 | 3867a92ba |
14 | 203cb10aa |
15 | 126a9cda3 |
hex | b1af273e |
2981046078 has 40 divisors (see below), whose sum is σ = 7031324520. Its totient is φ = 941382000.
The previous prime is 2981046073. The next prime is 2981046083. The reversal of 2981046078 is 8706401892.
2981046078 is a `hidden beast` number, since 29 + 8 + 10 + 4 + 607 + 8 = 666.
It is an interprime number because it is at equal distance from previous prime (2981046073) and next prime (2981046083).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2981046073) by changing a digit.
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 19 ways as a sum of consecutive naturals, for example, 481173 + ... + 487328.
It is an arithmetic number, because the mean of its divisors is an integer number (175783113).
Almost surely, 22981046078 is an apocalyptic number.
2981046078 is an abundant number, since it is smaller than the sum of its proper divisors (4050278442).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2981046078 is a wasteful number, since it uses less digits than its factorization.
2981046078 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 968534 (or 968525 counting only the distinct ones).
The product of its (nonzero) digits is 193536, while the sum is 45.
The square root of 2981046078 is about 54598.9567482750. The cubic root of 2981046078 is about 1439.2057860001.
The spelling of 2981046078 in words is "two billion, nine hundred eighty-one million, forty-six thousand, seventy-eight".
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