Search a number
-
+
30411234 = 2337431871
BaseRepresentation
bin111010000000…
…0100111100010
32010020001101000
41310000213202
530241124414
63003452430
7516330330
oct164004742
963201330
1030411234
1116191457
12a227116
1363ba219
144078b50
152a0ab09
hex1d009e2

30411234 has 64 divisors (see below), whose sum is σ = 79073280. Its totient is φ = 8482320.

The previous prime is 30411197. The next prime is 30411247. The reversal of 30411234 is 43211403.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15319 + ... + 17189.

It is an arithmetic number, because the mean of its divisors is an integer number (1235520).

Almost surely, 230411234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30411234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39536640).

30411234 is an abundant number, since it is smaller than the sum of its proper divisors (48662046).

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

30411234 is a wasteful number, since it uses less digits than its factorization.

30411234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 1926 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30411234 is about 5514.6381567606. The cubic root of 30411234 is about 312.1365896024.

Adding to 30411234 its reverse (43211403), we get a palindrome (73622637).

The spelling of 30411234 in words is "thirty million, four hundred eleven thousand, two hundred thirty-four".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 43 54 63 86 126 129 189 258 301 378 387 602 774 903 1161 1806 1871 2322 2709 3742 5418 5613 8127 11226 13097 16254 16839 26194 33678 39291 50517 78582 80453 101034 117873 160906 235746 241359 353619 482718 563171 707238 724077 1126342 1448154 1689513 2172231 3379026 4344462 5068539 10137078 15205617 30411234