Base | Representation |
---|---|
bin | 11011110001101… |
… | …00110001011111 |
3 | 121020102121221210 |
4 | 31320310301133 |
5 | 434122000111 |
6 | 35041555503 |
7 | 5526316245 |
oct | 1570646137 |
9 | 536377853 |
10 | 233000031 |
11 | 10a582410 |
12 | 66045b93 |
13 | 3936c954 |
14 | 22d32795 |
15 | 156c70a6 |
hex | de34c5f |
233000031 has 32 divisors (see below), whose sum is σ = 348986880. Its totient is φ = 137072000.
The previous prime is 233000029. The next prime is 233000041. The reversal of 233000031 is 130000332.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 233000031 - 21 = 233000029 is a prime.
It is a super-2 number, since 2×2330000312 = 108578028892001922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 232999980 and 233000016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (233000041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175990 + ... + 177308.
It is an arithmetic number, because the mean of its divisors is an integer number (10905840).
Almost surely, 2233000031 is an apocalyptic number.
233000031 is a deficient number, since it is larger than the sum of its proper divisors (115986849).
233000031 is a wasteful number, since it uses less digits than its factorization.
233000031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1487.
The product of its (nonzero) digits is 54, while the sum is 12.
The square root of 233000031 is about 15264.3385379125. The cubic root of 233000031 is about 615.3449766563.
Adding to 233000031 its reverse (130000332), we get a palindrome (363000363).
It can be divided in two parts, 2 and 33000031, that added together give a palindrome (33000033).
The spelling of 233000031 in words is "two hundred thirty-three million, thirty-one", and thus it is an aban number.
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