Base | Representation |
---|---|
bin | 111100100100001101… |
… | …111000011100100000 |
3 | 20012212012102102001000 |
4 | 330210031320130200 |
5 | 2031141211101123 |
6 | 45513024112000 |
7 | 4461361653441 |
oct | 744415703440 |
9 | 205765372030 |
10 | 65032128288 |
11 | 25641a39576 |
12 | 1072b165600 |
13 | 61951576aa |
14 | 320cd192c8 |
15 | 1a59403b43 |
hex | f24378720 |
65032128288 has 192 divisors, whose sum is σ = 194853496320. Its totient is φ = 21091239936.
The previous prime is 65032128269. The next prime is 65032128289. The reversal of 65032128288 is 88282123056.
It is not an unprimeable number, because it can be changed into a prime (65032128289) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7020556 + ... + 7029812.
It is an arithmetic number, because the mean of its divisors is an integer number (1014861960).
Almost surely, 265032128288 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 65032128288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97426748160).
65032128288 is an abundant number, since it is smaller than the sum of its proper divisors (129821368032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
65032128288 is a wasteful number, since it uses less digits than its factorization.
65032128288 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9496 (or 9482 counting only the distinct ones).
The product of its (nonzero) digits is 368640, while the sum is 45.
The spelling of 65032128288 in words is "sixty-five billion, thirty-two million, one hundred twenty-eight thousand, two hundred eighty-eight".
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