Base | Representation |
---|---|
bin | 11011100000010… |
… | …00001110010001 |
3 | 121002010210220001 |
4 | 31300020032101 |
5 | 433031023101 |
6 | 34521050001 |
7 | 5501043142 |
oct | 1560101621 |
9 | 532123801 |
10 | 230720401 |
11 | 10926571a |
12 | 65326901 |
13 | 38a52162 |
14 | 228dbac9 |
15 | 153c6901 |
hex | dc08391 |
230720401 has 16 divisors (see below), whose sum is σ = 246400000. Its totient is φ = 215422416.
The previous prime is 230720387. The next prime is 230720423. The reversal of 230720401 is 104027032.
It is a cyclic number.
It is not a de Polignac number, because 230720401 - 29 = 230719889 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (230720101) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525340 + ... + 525778.
It is an arithmetic number, because the mean of its divisors is an integer number (15400000).
Almost surely, 2230720401 is an apocalyptic number.
It is an amenable number.
230720401 is a deficient number, since it is larger than the sum of its proper divisors (15679599).
230720401 is a wasteful number, since it uses less digits than its factorization.
230720401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 796.
The product of its (nonzero) digits is 336, while the sum is 19.
The square root of 230720401 is about 15189.4832367662. The cubic root of 230720401 is about 613.3315882577.
Adding to 230720401 its reverse (104027032), we get a palindrome (334747433).
The spelling of 230720401 in words is "two hundred thirty million, seven hundred twenty thousand, four hundred one".
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