Base | Representation |
---|---|
bin | 10000110010011001… |
… | …11010000110001000 |
3 | 212021010002001220200 |
4 | 20121030322012020 |
5 | 121424230424210 |
6 | 4050154252200 |
7 | 436226046135 |
oct | 103114720610 |
9 | 25233061820 |
10 | 9012748680 |
11 | 3905509531 |
12 | 18b6427060 |
13 | b082c4cb0 |
14 | 616db358c |
15 | 37b3990c0 |
hex | 21933a188 |
9012748680 has 96 divisors (see below), whose sum is σ = 31544636760. Its totient is φ = 2218521600.
The previous prime is 9012748631. The next prime is 9012748687. The reversal of 9012748680 is 868472109.
9012748680 is a `hidden beast` number, since 90 + 1 + 2 + 7 + 486 + 80 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 5681842884 + 3330905796 = 75378^2 + 57714^2 .
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (9012748687) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 958221 + ... + 967580.
Almost surely, 29012748680 is an apocalyptic number.
9012748680 is a gapful number since it is divisible by the number (90) formed by its first and last digit.
It is an amenable number.
9012748680 is an abundant number, since it is smaller than the sum of its proper divisors (22531888080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
9012748680 is a wasteful number, since it uses less digits than its factorization.
9012748680 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1925831 (or 1925824 counting only the distinct ones).
The product of its (nonzero) digits is 193536, while the sum is 45.
The square root of 9012748680 is about 94935.4974706511. The cubic root of 9012748680 is about 2081.0655197790.
The spelling of 9012748680 in words is "nine billion, twelve million, seven hundred forty-eight thousand, six hundred eighty".
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