Base | Representation |
---|---|
bin | 100101111100101111… |
… | …1000111110101010110 |
3 | 21210100112101212001102 |
4 | 1023321133013311112 |
5 | 2313400221043122 |
6 | 101234402430102 |
7 | 5613344615000 |
oct | 1137137076526 |
9 | 253315355042 |
10 | 81495096662 |
11 | 3161a948361 |
12 | 13964662332 |
13 | 78b9acb2b5 |
14 | 3d31563370 |
15 | 21be89a492 |
hex | 12f97c7d56 |
81495096662 has 32 divisors (see below), whose sum is σ = 142813627200. Its totient is φ = 34863601920.
The previous prime is 81495096653. The next prime is 81495096671. The reversal of 81495096662 is 26669059418.
It is an interprime number because it is at equal distance from previous prime (81495096653) and next prime (81495096671).
It is a junction number, because it is equal to n+sod(n) for n = 81495096598 and 81495096607.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275462 + ... + 488742.
It is an arithmetic number, because the mean of its divisors is an integer number (4462925850).
Almost surely, 281495096662 is an apocalyptic number.
81495096662 is a deficient number, since it is larger than the sum of its proper divisors (61318530538).
81495096662 is a wasteful number, since it uses less digits than its factorization.
81495096662 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 213861 (or 213847 counting only the distinct ones).
The product of its (nonzero) digits is 5598720, while the sum is 56.
The spelling of 81495096662 in words is "eighty-one billion, four hundred ninety-five million, ninety-six thousand, six hundred sixty-two".
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