Base | Representation |
---|---|
bin | 11011011011000… |
… | …00010000010101 |
3 | 121000211212010201 |
4 | 31231200100111 |
5 | 432342014110 |
6 | 34454220501 |
7 | 5462146261 |
oct | 1555402025 |
9 | 530755121 |
10 | 230032405 |
11 | 108935829 |
12 | 65054731 |
13 | 38870c65 |
14 | 2279d0a1 |
15 | 152dcb3a |
hex | db60415 |
230032405 has 8 divisors (see below), whose sum is σ = 278482392. Its totient is φ = 182396928.
The previous prime is 230032399. The next prime is 230032459. The reversal of 230032405 is 504230032.
230032405 = T1961 + T1962 + ... + T2073.
It can be written as a sum of positive squares in 4 ways, for example, as 2686321 + 227346084 = 1639^2 + 15078^2 .
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 230032405 - 27 = 230032277 is a prime.
It is a Duffinian number.
It is a congruent 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, 203004 + ... + 204133.
It is an arithmetic number, because the mean of its divisors is an integer number (34810299).
Almost surely, 2230032405 is an apocalyptic number.
It is an amenable number.
230032405 is a deficient number, since it is larger than the sum of its proper divisors (48449987).
230032405 is a wasteful number, since it uses less digits than its factorization.
230032405 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 407255.
The product of its (nonzero) digits is 720, while the sum is 19.
The square root of 230032405 is about 15166.8192116871. The cubic root of 230032405 is about 612.7213405233.
Adding to 230032405 its reverse (504230032), we get a palindrome (734262437).
The spelling of 230032405 in words is "two hundred thirty million, thirty-two thousand, four hundred five".
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