Base | Representation |
---|---|
bin | 11011100011010… |
… | …11100000011111 |
3 | 121002220110201220 |
4 | 31301223200133 |
5 | 433132031241 |
6 | 34533504423 |
7 | 5504355600 |
oct | 1561534037 |
9 | 532813656 |
10 | 231127071 |
11 | 10951320a |
12 | 654a2113 |
13 | 38b652a6 |
14 | 229a5da7 |
15 | 15457166 |
hex | dc6b81f |
231127071 has 24 divisors (see below), whose sum is σ = 370851120. Its totient is φ = 127516032.
The previous prime is 231127063. The next prime is 231127133. The reversal of 231127071 is 170721132.
It is not a de Polignac number, because 231127071 - 23 = 231127063 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231122071) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22846 + ... + 31371.
It is an arithmetic number, because the mean of its divisors is an integer number (15452130).
Almost surely, 2231127071 is an apocalyptic number.
231127071 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
231127071 is a deficient number, since it is larger than the sum of its proper divisors (139724049).
231127071 is a wasteful number, since it uses less digits than its factorization.
231127071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 54263 (or 54256 counting only the distinct ones).
The product of its (nonzero) digits is 588, while the sum is 24.
The square root of 231127071 is about 15202.8639078300. The cubic root of 231127071 is about 613.6917314640.
The spelling of 231127071 in words is "two hundred thirty-one million, one hundred twenty-seven thousand, seventy-one".
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