Base | Representation |
---|---|
bin | 11011100010010… |
… | …10010001011110 |
3 | 121002122120000002 |
4 | 31301022101132 |
5 | 433113202232 |
6 | 34530534302 |
7 | 5503250660 |
oct | 1561122136 |
9 | 532576002 |
10 | 230990942 |
11 | 10942aa06 |
12 | 65437392 |
13 | 38b18340 |
14 | 2296c530 |
15 | 1542bb62 |
hex | dc4a45e |
230990942 has 64 divisors (see below), whose sum is σ = 456046080. Its totient is φ = 85193856.
The previous prime is 230990941. The next prime is 230990953. The reversal of 230990942 is 249099032.
230990942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (38).
It is a junction number, because it is equal to n+sod(n) for n = 230990896 and 230990905.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230990941) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231188 + ... + 232184.
It is an arithmetic number, because the mean of its divisors is an integer number (7125720).
Almost surely, 2230990942 is an apocalyptic number.
230990942 is a deficient number, since it is larger than the sum of its proper divisors (225055138).
230990942 is a wasteful number, since it uses less digits than its factorization.
230990942 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1105.
The product of its (nonzero) digits is 34992, while the sum is 38.
The square root of 230990942 is about 15198.3861643268. The cubic root of 230990942 is about 613.5712239468.
The spelling of 230990942 in words is "two hundred thirty million, nine hundred ninety thousand, nine hundred forty-two".
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