| Base | Representation |
|---|---|
| bin | 11010011000000011… |
| … | …011110010000000000 |
| 3 | 2201002201200021220100 |
| 4 | 122120003132100000 |
| 5 | 431000114212234 |
| 6 | 21002130042400 |
| 7 | 2021550155361 |
| oct | 323003362000 |
| 9 | 81081607810 |
| 10 | 28320850944 |
| 11 | 11013422541 |
| 12 | 55a4719400 |
| 13 | 2894539389 |
| 14 | 152942db68 |
| 15 | b0b4e3399 |
| hex | 6980de400 |
28320850944 has 99 divisors (see below), whose sum is σ = 81822518193. Its totient is φ = 9434898432.
The previous prime is 28320850939. The next prime is 28320850949. The reversal of 28320850944 is 44905802382.
The square root of 28320850944 is 168288.
It is a perfect power (a square), and thus also a powerful number.
28320850944 is a `hidden beast` number, since 2 + 83 + 20 + 8 + 509 + 44 = 666.
It is an interprime number because it is at equal distance from previous prime (28320850939) and next prime (28320850949).
It can be written as a sum of positive squares in only one way, i.e., 802022400 + 27518828544 = 28320^2 + 165888^2 .
It is a super-2 number, since 2×283208509442 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 28320850944.
It is not an unprimeable number, because it can be changed into a prime (28320850949) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16154772 + ... + 16156524.
Almost surely, 228320850944 is an apocalyptic number.
28320850944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
28320850944 is the 168288-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 28320850944
28320850944 is an abundant number, since it is smaller than the sum of its proper divisors (53501667249).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28320850944 is an frugal number, since it uses more digits than its factorization.
28320850944 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3532 (or 1758 counting only the distinct ones).
The product of its (nonzero) digits is 552960, while the sum is 45.
The spelling of 28320850944 in words is "twenty-eight billion, three hundred twenty million, eight hundred fifty thousand, nine hundred forty-four".
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