Search a number
-
+
30233213033 = 39794180929
BaseRepresentation
bin11100001010000010…
…100011100001101001
32220001000010100111212
4130022002203201221
5443404200304113
621520002402505
72120131033142
oct341202434151
986030110455
1030233213033
1111904951481
125a39060435
132b0a7aa98a
14166b3d4ac9
15bbe3440a8
hex70a0a3869

30233213033 has 8 divisors (see below), whose sum is σ = 30341951880. Its totient is φ = 30124638720.

The previous prime is 30233212991. The next prime is 30233213039. The reversal of 30233213033 is 33031233203.

It can be written as a sum of positive squares in 4 ways, for example, as 11008835929 + 19224377104 = 104923^2 + 138652^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30233213033 - 26 = 30233212969 is a prime.

It is a super-2 number, since 2×302332130332 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30233213039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333113 + ... + 414041.

It is an arithmetic number, because the mean of its divisors is an integer number (3792743985).

Almost surely, 230233213033 is an apocalyptic number.

It is an amenable number.

30233213033 is a deficient number, since it is larger than the sum of its proper divisors (108738847).

30233213033 is an equidigital number, since it uses as much as digits as its factorization.

30233213033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82267.

The product of its (nonzero) digits is 2916, while the sum is 23.

Adding to 30233213033 its reverse (33031233203), we get a palindrome (63264446236).

The spelling of 30233213033 in words is "thirty billion, two hundred thirty-three million, two hundred thirteen thousand, thirty-three".

Divisors: 1 397 941 80929 373577 32128813 76154189 30233213033