Base | Representation |
---|---|
bin | 100111001011011111… |
… | …001111011010011001 |
3 | 11000120211121212101210 |
4 | 213023133033122121 |
5 | 1142124034420410 |
6 | 31154233333333 |
7 | 3016333536660 |
oct | 471337173231 |
9 | 130524555353 |
10 | 42068670105 |
11 | 16928738560 |
12 | 81a0867249 |
13 | 3c75821007 |
14 | 207121ddd7 |
15 | 1163411220 |
hex | 9cb7cf699 |
42068670105 has 32 divisors (see below), whose sum is σ = 83918803968. Its totient is φ = 17483083200.
The previous prime is 42068670097. The next prime is 42068670109. The reversal of 42068670105 is 50107686024.
It is not a de Polignac number, because 42068670105 - 23 = 42068670097 is a prime.
It is a super-2 number, since 2×420686701052 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (42068670109) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18210391 + ... + 18212700.
It is an arithmetic number, because the mean of its divisors is an integer number (2622462624).
Almost surely, 242068670105 is an apocalyptic number.
It is an amenable number.
42068670105 is a deficient number, since it is larger than the sum of its proper divisors (41850133863).
42068670105 is a wasteful number, since it uses less digits than its factorization.
42068670105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 36423117.
The product of its (nonzero) digits is 80640, while the sum is 39.
The spelling of 42068670105 in words is "forty-two billion, sixty-eight million, six hundred seventy thousand, one hundred five".
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