Search a number
-
+
30442512 = 2431737307
BaseRepresentation
bin111010000100…
…0010000010000
32010021122021110
41310020100100
530243130022
63004253320
7516520452
oct164102020
963248243
1030442512
1116202a01
12a241240
1363cb529
1440862d2
152a1500c
hex1d08410

30442512 has 40 divisors (see below), whose sum is σ = 83271456. Its totient is φ = 9550336.

The previous prime is 30442499. The next prime is 30442537. The reversal of 30442512 is 21524403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17838 + ... + 19469.

Almost surely, 230442512 is an apocalyptic number.

It is an amenable number.

30442512 is an abundant number, since it is smaller than the sum of its proper divisors (52828944).

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

30442512 is a wasteful number, since it uses less digits than its factorization.

30442512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37335 (or 37329 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 30442512 is about 5517.4733347792. The cubic root of 30442512 is about 312.2435639206.

Adding to 30442512 its reverse (21524403), we get a palindrome (51966915).

The spelling of 30442512 in words is "thirty million, four hundred forty-two thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 204 272 408 816 37307 74614 111921 149228 223842 298456 447684 596912 634219 895368 1268438 1790736 1902657 2536876 3805314 5073752 7610628 10147504 15221256 30442512