Base | Representation |
---|---|
bin | 1001111111100… |
… | …10100110010110 |
3 | 12211202001202220 |
4 | 10333302212112 |
5 | 132430044230 |
6 | 12152443210 |
7 | 2035360542 |
oct | 477624626 |
9 | 184661686 |
10 | 83831190 |
11 | 43358683 |
12 | 240a9506 |
13 | 144a2171 |
14 | b1c2a22 |
15 | 755dd10 |
hex | 4ff2996 |
83831190 has 32 divisors (see below), whose sum is σ = 201436416. Its totient is φ = 22328160.
The previous prime is 83831179. The next prime is 83831203. The reversal of 83831190 is 9113838.
It is a super-2 number, since 2×838311902 = 14055336833632200, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45385 + ... + 47195.
It is an arithmetic number, because the mean of its divisors is an integer number (6294888).
Almost surely, 283831190 is an apocalyptic number.
83831190 is an abundant number, since it is smaller than the sum of its proper divisors (117605226).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
83831190 is a wasteful number, since it uses less digits than its factorization.
83831190 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3364.
The product of its (nonzero) digits is 5184, while the sum is 33.
The square root of 83831190 is about 9155.9374178726. The cubic root of 83831190 is about 437.6583415971.
The spelling of 83831190 in words is "eighty-three million, eight hundred thirty-one thousand, one hundred ninety".
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