Base | Representation |
---|---|
bin | 11011011111111… |
… | …00101011111001 |
3 | 121002001102001211 |
4 | 31233330223321 |
5 | 433023020040 |
6 | 34520043121 |
7 | 5500455313 |
oct | 1557745371 |
9 | 532042054 |
10 | 230673145 |
11 | 10923316a |
12 | 653034a1 |
13 | 38a367b1 |
14 | 228c87b3 |
15 | 153b78ea |
hex | dbfcaf9 |
230673145 has 8 divisors (see below), whose sum is σ = 277594056. Its totient is φ = 184014336.
The previous prime is 230673089. The next prime is 230673173. The reversal of 230673145 is 541376032.
It can be written as a sum of positive squares in 4 ways, for example, as 43612816 + 187060329 = 6604^2 + 13677^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 230673145 - 211 = 230671097 is a prime.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63582 + ... + 67111.
It is an arithmetic number, because the mean of its divisors is an integer number (34699257).
Almost surely, 2230673145 is an apocalyptic number.
It is an amenable number.
230673145 is a deficient number, since it is larger than the sum of its proper divisors (46920911).
230673145 is a wasteful number, since it uses less digits than its factorization.
230673145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 131051.
The product of its (nonzero) digits is 15120, while the sum is 31.
The square root of 230673145 is about 15187.9276071490. The cubic root of 230673145 is about 613.2897113417.
The spelling of 230673145 in words is "two hundred thirty million, six hundred seventy-three thousand, one hundred forty-five".
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