Base | Representation |
---|---|
bin | 100101101111100100… |
… | …1000110011111001010 |
3 | 21202012201201221001200 |
4 | 1023133021012133022 |
5 | 2311444044210422 |
6 | 101122453325030 |
7 | 5566400056461 |
oct | 1133711063712 |
9 | 252181657050 |
10 | 81053116362 |
11 | 31413409a89 |
12 | 13860636776 |
13 | 784937b9aa |
14 | 3ccc9919d8 |
15 | 2195b932ac |
hex | 12df2467ca |
81053116362 has 24 divisors (see below), whose sum is σ = 175637670624. Its totient is φ = 27014230824.
The previous prime is 81053116343. The next prime is 81053116369. The reversal of 81053116362 is 26361135018.
81053116362 is a `hidden beast` number, since 8 + 1 + 0 + 5 + 3 + 11 + 636 + 2 = 666.
It is not an unprimeable number, because it can be changed into a prime (81053116369) 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, 143718 + ... + 427505.
It is an arithmetic number, because the mean of its divisors is an integer number (7318236276).
Almost surely, 281053116362 is an apocalyptic number.
81053116362 is an abundant number, since it is smaller than the sum of its proper divisors (94584554262).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
81053116362 is a wasteful number, since it uses less digits than its factorization.
81053116362 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 579114 (or 579111 counting only the distinct ones).
The product of its (nonzero) digits is 25920, while the sum is 36.
The spelling of 81053116362 in words is "eighty-one billion, fifty-three million, one hundred sixteen thousand, three hundred sixty-two".
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