Base | Representation |
---|---|
bin | 11011100010001… |
… | …00011010000111 |
3 | 121002121100001100 |
4 | 31301010122013 |
5 | 433111420134 |
6 | 34530231143 |
7 | 5503120641 |
oct | 1561043207 |
9 | 532540040 |
10 | 230966919 |
11 | 109413957 |
12 | 654254b3 |
13 | 38b0a421 |
14 | 22963891 |
15 | 15424999 |
hex | dc44687 |
230966919 has 12 divisors (see below), whose sum is σ = 334761336. Its totient is φ = 153450672.
The previous prime is 230966917. The next prime is 230966959. The reversal of 230966919 is 919669032.
It is a happy number.
It is not a de Polignac number, because 230966919 - 21 = 230966917 is a prime.
It is a super-2 number, since 2×2309669192 = 106691435344705122, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230966917) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41157 + ... + 46430.
It is an arithmetic number, because the mean of its divisors is an integer number (27896778).
Almost surely, 2230966919 is an apocalyptic number.
230966919 is a deficient number, since it is larger than the sum of its proper divisors (103794417).
230966919 is a wasteful number, since it uses less digits than its factorization.
230966919 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 87886 (or 87883 counting only the distinct ones).
The product of its (nonzero) digits is 157464, while the sum is 45.
The square root of 230966919 is about 15197.5958296041. The cubic root of 230966919 is about 613.5499527916.
The spelling of 230966919 in words is "two hundred thirty million, nine hundred sixty-six thousand, nine hundred nineteen".
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