| Base | Representation |
|---|---|
| bin | 1100101100111011011000… |
| … | …01100010010010110000000 |
| 3 | 10122220021100020022020000000 |
| 4 | 12112131230030102112000 |
| 5 | 12130114202244023310 |
| 6 | 135223440010000000 |
| 7 | 5612006455143426 |
| oct | 626355414222600 |
| 9 | 118807306266000 |
| 10 | 27931987486080 |
| 11 | 8999986828987 |
| 12 | 31714a6116000 |
| 13 | 1277c8a445a02 |
| 14 | 6c7cb5c43116 |
| 15 | 336895e2a4c0 |
| hex | 19676c312580 |
27931987486080 has 512 divisors, whose sum is σ = 100213192396800. Its totient is φ = 7443614693376.
The previous prime is 27931987486057. The next prime is 27931987486103. The reversal of 27931987486080 is 8068478913972.
27931987486080 is a `hidden beast` number, since 2 + 7 + 9 + 3 + 1 + 9 + 8 + 7 + 4 + 8 + 608 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (27931987486057) and next prime (27931987486103).
It is a Harshad number since it is a multiple of its sum of digits (72).
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 63 ways as a sum of consecutive naturals, for example, 2445235249 + ... + 2445246671.
It is an arithmetic number, because the mean of its divisors is an integer number (195728891400).
Almost surely, 227931987486080 is an apocalyptic number.
27931987486080 is a gapful number since it is divisible by the number (20) 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 27931987486080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50106596198400).
27931987486080 is an abundant number, since it is smaller than the sum of its proper divisors (72281204910720).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27931987486080 is an equidigital number, since it uses as much as digits as its factorization.
27931987486080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13210 (or 13180 counting only the distinct ones).
The product of its (nonzero) digits is 292626432, while the sum is 72.
The spelling of 27931987486080 in words is "twenty-seven trillion, nine hundred thirty-one billion, nine hundred eighty-seven million, four hundred eighty-six thousand, eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •