Base | Representation |
---|---|
bin | 1000001110001110101010… |
… | …10101110101010110100001 |
3 | 2101000112110201012202201220 |
4 | 10013013111111311112201 |
5 | 4332220041213310200 |
6 | 102242201403045253 |
7 | 3544213300301400 |
oct | 407072525652641 |
9 | 71015421182656 |
10 | 18081096619425 |
11 | 5841171739784 |
12 | 20402a2810829 |
13 | a1206a120508 |
14 | 4671b6045637 |
15 | 2154e67914a0 |
hex | 1071d55755a1 |
18081096619425 has 72 divisors (see below), whose sum is σ = 35973875203200. Its totient is φ = 7980621909120.
The previous prime is 18081096619361. The next prime is 18081096619427. The reversal of 18081096619425 is 52491669018081.
It is not a de Polignac number, because 18081096619425 - 26 = 18081096619361 is a prime.
It is not an unprimeable number, because it can be changed into a prime (18081096619427) by changing a digit.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 84721465 + ... + 84934614.
It is an arithmetic number, because the mean of its divisors is an integer number (499637155600).
Almost surely, 218081096619425 is an apocalyptic number.
18081096619425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
18081096619425 is a deficient number, since it is larger than the sum of its proper divisors (17892778583775).
18081096619425 is a wasteful number, since it uses less digits than its factorization.
18081096619425 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 169656135 (or 169656123 counting only the distinct ones).
The product of its (nonzero) digits is 7464960, while the sum is 60.
The spelling of 18081096619425 in words is "eighteen trillion, eighty-one billion, ninety-six million, six hundred nineteen thousand, four hundred twenty-five".
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