[go: up one dir, main page]

Search a number
-
+
30330012 = 2235942839
BaseRepresentation
bin111001110110…
…0110010011100
32010001220221210
41303230302130
530231030022
63002024420
7515541456
oct163546234
963056853
1030330012
1116136429
12a1a8110
13638c26b
1440572d6
1529e1a0c
hex1cecc9c

30330012 has 24 divisors (see below), whose sum is σ = 71971200. Its totient is φ = 9938416.

The previous prime is 30329987. The next prime is 30330017. The reversal of 30330012 is 21003303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 30330012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30330017) 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, 20712 + ... + 22127.

It is an arithmetic number, because the mean of its divisors is an integer number (2998800).

Almost surely, 230330012 is an apocalyptic number.

It is an amenable number.

30330012 is an abundant number, since it is smaller than the sum of its proper divisors (41641188).

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

30330012 is a wasteful number, since it uses less digits than its factorization.

30330012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42905 (or 42903 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 30330012 is about 5507.2690146751. The cubic root of 30330012 is about 311.8584581516.

Adding to 30330012 its reverse (21003303), we get a palindrome (51333315).

The spelling of 30330012 in words is "thirty million, three hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 12 59 118 177 236 354 708 42839 85678 128517 171356 257034 514068 2527501 5055002 7582503 10110004 15165006 30330012