Search a number
-
+
30012012563 = 1325785310531
BaseRepresentation
bin11011111100110110…
…101111100000010011
32212110120220012111212
4123330312233200103
5442431033400223
621442021330335
72111503616621
oct337466574023
985416805455
1030012012563
1111800aa9275
125996b669ab
132aa3a0ca20
141649c94511
15ba9bed278
hex6fcdaf813

30012012563 has 16 divisors (see below), whose sum is σ = 32487512736. Its totient is φ = 27560632320.

The previous prime is 30012012557. The next prime is 30012012631. The reversal of 30012012563 is 36521021003.

It is not a de Polignac number, because 30012012563 - 220 = 30010963987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30012012523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2844608 + ... + 2855138.

It is an arithmetic number, because the mean of its divisors is an integer number (2030469546).

Almost surely, 230012012563 is an apocalyptic number.

30012012563 is a deficient number, since it is larger than the sum of its proper divisors (2475500173).

30012012563 is a wasteful number, since it uses less digits than its factorization.

30012012563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11654.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 30012012563 its reverse (36521021003), we get a palindrome (66533033566).

The spelling of 30012012563 in words is "thirty billion, twelve million, twelve thousand, five hundred sixty-three".

Divisors: 1 13 257 853 3341 10531 11089 136903 219221 2706467 2849873 8982943 35184071 116778259 2308616351 30012012563