Base | Representation |
---|---|
bin | 11011011110000… |
… | …01110110000011 |
3 | 121001121011110101 |
4 | 31233001312003 |
5 | 432442312011 |
6 | 34510543231 |
7 | 5465432536 |
oct | 1557016603 |
9 | 531534411 |
10 | 230432131 |
11 | 109089086 |
12 | 65207b17 |
13 | 38980b97 |
14 | 22864a1d |
15 | 1536b2c1 |
hex | dbc1d83 |
230432131 has 4 divisors (see below), whose sum is σ = 230523592. Its totient is φ = 230340672.
The previous prime is 230432129. The next prime is 230432143. The reversal of 230432131 is 131234032.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 230432131 - 21 = 230432129 is a prime.
It is a super-2 number, since 2×2304321312 = 106197933994402322, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 230432099 and 230432108.
It is not an unprimeable number, because it can be changed into a prime (230132131) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41841 + ... + 47026.
It is an arithmetic number, because the mean of its divisors is an integer number (57630898).
Almost surely, 2230432131 is an apocalyptic number.
230432131 is a deficient number, since it is larger than the sum of its proper divisors (91461).
230432131 is an equidigital number, since it uses as much as digits as its factorization.
230432131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 91460.
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 230432131 is about 15179.9911396549. The cubic root of 230432131 is about 613.0760426091.
Adding to 230432131 its reverse (131234032), we get a palindrome (361666163).
The spelling of 230432131 in words is "two hundred thirty million, four hundred thirty-two thousand, one hundred thirty-one".
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