Search a number
-
+
30022012 = 22311971229
BaseRepresentation
bin111001010000…
…1100101111100
32002111021110101
41302201211330
530141201022
62551250444
7513116506
oct162414574
962437411
1030022012
1115a45a89
12a079a24
1362b2007
143db6d76
152980627
hex1ca197c

30022012 has 24 divisors (see below), whose sum is σ = 54552960. Its totient is φ = 14441280.

The previous prime is 30022007. The next prime is 30022067. The reversal of 30022012 is 21022003.

It is a self number, because there is not a number n which added to its sum of digits gives 30022012.

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 7 ways as a sum of consecutive naturals, for example, 23814 + ... + 25042.

It is an arithmetic number, because the mean of its divisors is an integer number (2273040).

Almost surely, 230022012 is an apocalyptic number.

It is an amenable number.

30022012 is a deficient number, since it is larger than the sum of its proper divisors (24530948).

30022012 is a wasteful number, since it uses less digits than its factorization.

30022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1459 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 30022012 is about 5479.2346180831. The cubic root of 30022012 is about 310.7992280182.

Adding to 30022012 its reverse (21022003), we get a palindrome (51044015).

Subtracting from 30022012 its reverse (21022003), we obtain a palindrome (9000009).

The spelling of 30022012 in words is "thirty million, twenty-two thousand, twelve".

Divisors: 1 2 4 31 62 124 197 394 788 1229 2458 4916 6107 12214 24428 38099 76198 152396 242113 484226 968452 7505503 15011006 30022012