Base | Representation |
---|---|
bin | 10111110100011111… |
… | …00010101000110110 |
3 | 1020000020110120222112 |
4 | 23322033202220312 |
5 | 202142302001010 |
6 | 5512545531022 |
7 | 631622602202 |
oct | 137217425066 |
9 | 36006416875 |
10 | 12788312630 |
11 | 547273a615 |
12 | 258a943a72 |
13 | 128a584ac2 |
14 | 8945c3b02 |
15 | 4eca89a05 |
hex | 2fa3e2a36 |
12788312630 has 8 divisors (see below), whose sum is σ = 23018962752. Its totient is φ = 5115325048.
The previous prime is 12788312623. The next prime is 12788312681. The reversal of 12788312630 is 3621388721.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
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 3 ways as a sum of consecutive naturals, for example, 639415622 + ... + 639415641.
It is an arithmetic number, because the mean of its divisors is an integer number (2877370344).
Almost surely, 212788312630 is an apocalyptic number.
12788312630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12788312630 is a deficient number, since it is larger than the sum of its proper divisors (10230650122).
12788312630 is a wasteful number, since it uses less digits than its factorization.
12788312630 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1278831270.
The product of its (nonzero) digits is 96768, while the sum is 41.
The spelling of 12788312630 in words is "twelve billion, seven hundred eighty-eight million, three hundred twelve thousand, six hundred thirty".
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