Base | Representation |
---|---|
bin | 11011011101000… |
… | …01000100111001 |
3 | 121001100100100100 |
4 | 31232201010321 |
5 | 432424013123 |
6 | 34504030013 |
7 | 5464333326 |
oct | 1556410471 |
9 | 531310310 |
10 | 230297913 |
11 | 108aa725a |
12 | 65162309 |
13 | 38934a71 |
14 | 2282bb4d |
15 | 15341643 |
hex | dba1139 |
230297913 has 24 divisors (see below), whose sum is σ = 338069160. Its totient is φ = 151050240.
The previous prime is 230297833. The next prime is 230297927. The reversal of 230297913 is 319792032.
230297913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 29452329 + 200845584 = 5427^2 + 14172^2 .
It is not a de Polignac number, because 230297913 - 29 = 230297401 is a prime.
It is not an unprimeable number, because it can be changed into a prime (230297713) 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, 192445 + ... + 193637.
It is an arithmetic number, because the mean of its divisors is an integer number (14086215).
Almost surely, 2230297913 is an apocalyptic number.
It is an amenable number.
230297913 is a deficient number, since it is larger than the sum of its proper divisors (107771247).
230297913 is a wasteful number, since it uses less digits than its factorization.
230297913 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1529 (or 1526 counting only the distinct ones).
The product of its (nonzero) digits is 20412, while the sum is 36.
The square root of 230297913 is about 15175.5696103968. The cubic root of 230297913 is about 612.9569882897.
The spelling of 230297913 in words is "two hundred thirty million, two hundred ninety-seven thousand, nine hundred thirteen".
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