| Base | Representation |
|---|---|
| bin | 101000001111111011… |
| … | …011110001101100000 |
| 3 | 11010112212021002010000 |
| 4 | 220033323132031200 |
| 5 | 1202002012441230 |
| 6 | 31504212340000 |
| 7 | 3056645525340 |
| oct | 501773361540 |
| 9 | 133485232100 |
| 10 | 43216921440 |
| 11 | 17367909800 |
| 12 | 8461314600 |
| 13 | 40c9697184 |
| 14 | 213d91cd20 |
| 15 | 11ce128b60 |
| hex | a0fede360 |
43216921440 has 1440 divisors, whose sum is σ = 199332790272. Its totient is φ = 8622028800.
The previous prime is 43216921427. The next prime is 43216921441. The reversal of 43216921440 is 4412961234.
43216921440 is a `hidden beast` number, since 4 + 32 + 169 + 21 + 440 = 666.
It is a tau number, because it is divible by the number of its divisors (1440).
It is a super-2 number, since 2×432169214402 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 43216921395 and 43216921404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (43216921441) 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 239 ways as a sum of consecutive naturals, for example, 340290657 + ... + 340290783.
Almost surely, 243216921440 is an apocalyptic number.
43216921440 is a gapful number since it is divisible by the number (40) 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 43216921440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99666395136).
43216921440 is an abundant number, since it is smaller than the sum of its proper divisors (156115868832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
43216921440 is a wasteful number, since it uses less digits than its factorization.
43216921440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 214 (or 186 counting only the distinct ones).
The product of its (nonzero) digits is 41472, while the sum is 36.
The spelling of 43216921440 in words is "forty-three billion, two hundred sixteen million, nine hundred twenty-one thousand, four hundred forty".
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