Search a number
-
+
30233200230 = 23252131157637
BaseRepresentation
bin11100001010000010…
…100000011001100110
32220001000002200221200
4130022002200121212
5443404144401410
621520002223330
72120130650622
oct341202403146
986030080850
1030233200230
11119049428a2
125a39054b46
132b0a7a4bbc
14166b3d0182
15bbe3403c0
hex70a0a0666

30233200230 has 48 divisors (see below), whose sum is σ = 78643706544. Its totient is φ = 8058352320.

The previous prime is 30233200187. The next prime is 30233200243. The reversal of 30233200230 is 3200233203.

30233200230 is a `hidden beast` number, since 3 + 0 + 233 + 200 + 230 = 666.

It is a super-2 number, since 2×302332002302 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 112972 + ... + 270608.

It is an arithmetic number, because the mean of its divisors is an integer number (1638410553).

Almost surely, 230233200230 is an apocalyptic number.

30233200230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30233200230 is an abundant number, since it is smaller than the sum of its proper divisors (48410506314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30233200230 is a wasteful number, since it uses less digits than its factorization.

30233200230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159781 (or 159778 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

Adding to 30233200230 its reverse (3200233203), we get a palindrome (33433433433).

The spelling of 30233200230 in words is "thirty billion, two hundred thirty-three million, two hundred thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 2131 4262 6393 10655 12786 19179 21310 31965 38358 63930 95895 157637 191790 315274 472911 788185 945822 1418733 1576370 2364555 2837466 4729110 7093665 14187330 335924447 671848894 1007773341 1679622235 2015546682 3023320023 3359244470 5038866705 6046640046 10077733410 15116600115 30233200230