| Base | Representation |
|---|---|
| bin | 1110001011101111001… |
| … | …1101001011100000000 |
| 3 | 212021221201022010100000 |
| 4 | 3202323303221130000 |
| 5 | 12443013234001130 |
| 6 | 303535013200000 |
| 7 | 23414226503646 |
| oct | 3427363513400 |
| 9 | 767851263300 |
| 10 | 243669047040 |
| 11 | 94380908621 |
| 12 | 3b284330000 |
| 13 | 19c93578693 |
| 14 | bb17a93196 |
| 15 | 651210b260 |
| hex | 38bbce9700 |
243669047040 has 864 divisors, whose sum is σ = 928246265856. Its totient is φ = 61093232640.
The previous prime is 243669046987. The next prime is 243669047047. The reversal of 243669047040 is 40740966342.
It is a happy number.
243669047040 is a `hidden beast` number, since 24 + 36 + 6 + 90 + 470 + 40 = 666.
243669047040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (864).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (243669047047) 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 95 ways as a sum of consecutive naturals, for example, 356762539 + ... + 356763221.
It is an arithmetic number, because the mean of its divisors is an integer number (1074359104).
Almost surely, 2243669047040 is an apocalyptic number.
243669047040 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 243669047040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464123132928).
243669047040 is an abundant number, since it is smaller than the sum of its proper divisors (684577218816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
243669047040 is an equidigital number, since it uses as much as digits as its factorization.
243669047040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 787 (or 761 counting only the distinct ones).
The product of its (nonzero) digits is 870912, while the sum is 45.
The spelling of 243669047040 in words is "two hundred forty-three billion, six hundred sixty-nine million, forty-seven thousand, forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.120 sec. • engine limits •