| Base | Representation |
|---|---|
| bin | 1110111101010101101001… |
| … | …0011000111111001000000 |
| 3 | 2011020022102212011000000000 |
| 4 | 3233111122103013321000 |
| 5 | 4123431320323121010 |
| 6 | 54551342213000000 |
| 7 | 3315152423430435 |
| oct | 357253223077100 |
| 9 | 64208385130000 |
| 10 | 16446944738880 |
| 11 | 5271123596a27 |
| 12 | 1a17640623000 |
| 13 | 923c2b903b46 |
| 14 | 40c071b41b8c |
| 15 | 1d7c51d0b7c0 |
| hex | ef55a4c7e40 |
16446944738880 has 1120 divisors, whose sum is σ = 61198382665728. Its totient is φ = 4205422540800.
The previous prime is 16446944738863. The next prime is 16446944738881. The reversal of 16446944738880 is 8883744964461.
16446944738880 is a `hidden beast` number, since 1 + 6 + 4 + 46 + 94 + 47 + 388 + 80 = 666.
It is a super-2 number, since 2×164469447388802 (a number of 27 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (72).
It is a junction number, because it is equal to n+sod(n) for n = 16446944738799 and 16446944738808.
It is not an unprimeable number, because it can be changed into a prime (16446944738881) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 25578451839 + ... + 25578452481.
Almost surely, 216446944738880 is an apocalyptic number.
16446944738880 is a gapful number since it is divisible by the number (10) 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 16446944738880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30599191332864).
16446944738880 is an abundant number, since it is smaller than the sum of its proper divisors (44751437926848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16446944738880 is an frugal number, since it uses more digits than its factorization.
16446944738880 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 849 (or 815 counting only the distinct ones).
The product of its (nonzero) digits is 891813888, while the sum is 72.
The spelling of 16446944738880 in words is "sixteen trillion, four hundred forty-six billion, nine hundred forty-four million, seven hundred thirty-eight thousand, eight hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •