[go: up one dir, main page]

Search a number
-
+
2130030433 = 6731791499
BaseRepresentation
bin111111011110101…
…1010111101100001
312111110000202110001
41332331122331201
513330241433213
6551205540001
7103532650156
oct17675327541
95443022401
102130030433
119a338a433
124b5414601
1327c3a394b
14162c6622d
15c6eea1dd
hex7ef5af61

2130030433 has 4 divisors (see below), whose sum is σ = 2161822000. Its totient is φ = 2098238868.

The previous prime is 2130030349. The next prime is 2130030439. The reversal of 2130030433 is 3340300312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2130030433 - 221 = 2127933281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2130030433.

It is not an unprimeable number, because it can be changed into a prime (2130030439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15895683 + ... + 15895816.

It is an arithmetic number, because the mean of its divisors is an integer number (540455500).

Almost surely, 22130030433 is an apocalyptic number.

It is an amenable number.

2130030433 is a deficient number, since it is larger than the sum of its proper divisors (31791567).

2130030433 is an equidigital number, since it uses as much as digits as its factorization.

2130030433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31791566.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 2130030433 is about 46152.2527402509. The cubic root of 2130030433 is about 1286.6544789832.

Adding to 2130030433 its reverse (3340300312), we get a palindrome (5470330745).

The spelling of 2130030433 in words is "two billion, one hundred thirty million, thirty thousand, four hundred thirty-three".

Divisors: 1 67 31791499 2130030433