Base | Representation |
---|---|
bin | 1001111100100… |
… | …00101011011001 |
3 | 12210222200120220 |
4 | 10332100223121 |
5 | 132324230410 |
6 | 12140110253 |
7 | 2032100313 |
oct | 476205331 |
9 | 183880526 |
10 | 83430105 |
11 | 43104300 |
12 | 23b35389 |
13 | 14391735 |
14 | b11a7b3 |
15 | 74d0070 |
hex | 4f90ad9 |
83430105 has 48 divisors (see below), whose sum is σ = 150279360. Its totient is φ = 39473280.
The previous prime is 83430097. The next prime is 83430107. The reversal of 83430105 is 50103438.
It is not a de Polignac number, because 83430105 - 23 = 83430097 is a prime.
It is a super-2 number, since 2×834301052 = 13921164840622050, which contains 22 as substring.
It is an alternating number because its digits alternate between even and odd.
It is not an unprimeable number, because it can be changed into a prime (83430107) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77511 + ... + 78579.
It is an arithmetic number, because the mean of its divisors is an integer number (3130820).
Almost surely, 283430105 is an apocalyptic number.
It is an amenable number.
83430105 is a deficient number, since it is larger than the sum of its proper divisors (66849255).
83430105 is a wasteful number, since it uses less digits than its factorization.
83430105 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1142 (or 1131 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 24.
The square root of 83430105 is about 9134.0081563353. The cubic root of 83430105 is about 436.9592426385.
The spelling of 83430105 in words is "eighty-three million, four hundred thirty thousand, one hundred five".
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