Base | Representation |
---|---|
bin | 100110001001010000… |
… | …0001000100101101101 |
3 | 21211102210010121020100 |
4 | 1030102200020211231 |
5 | 2320230141323201 |
6 | 101344154141313 |
7 | 5626632150306 |
oct | 1142240104555 |
9 | 254383117210 |
10 | 81914792301 |
11 | 31815845961 |
12 | 13a61121839 |
13 | 7955a47604 |
14 | 3d711b37ad |
15 | 21e664e886 |
hex | 131280896d |
81914792301 has 12 divisors (see below), whose sum is σ = 118362905440. Its totient is φ = 54590689800.
The previous prime is 81914792293. The next prime is 81914792317. The reversal of 81914792301 is 10329741918.
It is not a de Polignac number, because 81914792301 - 23 = 81914792293 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (81914792341) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1570561 + ... + 1621878.
Almost surely, 281914792301 is an apocalyptic number.
It is an amenable number.
81914792301 is a deficient number, since it is larger than the sum of its proper divisors (36448113139).
81914792301 is a wasteful number, since it uses less digits than its factorization.
81914792301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3195296 (or 3195293 counting only the distinct ones).
The product of its (nonzero) digits is 108864, while the sum is 45.
The spelling of 81914792301 in words is "eighty-one billion, nine hundred fourteen million, seven hundred ninety-two thousand, three hundred one".
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