Search a number
-
+
30434243 = 725311719
BaseRepresentation
bin111010000011…
…0001111000011
32010021012221012
41310012033003
530242343433
63004151135
7516454400
oct164061703
963235835
1030434243
11161a7774
12a2384ab
1363c7838
1440832a7
152a12848
hex1d063c3

30434243 has 12 divisors (see below), whose sum is σ = 36074160. Its totient is φ = 25592112.

The previous prime is 30434231. The next prime is 30434249. The reversal of 30434243 is 34243403.

It is a happy number.

It is not a de Polignac number, because 30434243 - 220 = 29385667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30434249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3263 + ... + 8456.

It is an arithmetic number, because the mean of its divisors is an integer number (3006180).

Almost surely, 230434243 is an apocalyptic number.

30434243 is a deficient number, since it is larger than the sum of its proper divisors (5639917).

30434243 is a wasteful number, since it uses less digits than its factorization.

30434243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11786 (or 11779 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 30434243 is about 5516.7239372657. The cubic root of 30434243 is about 312.2152901277.

Adding to 30434243 its reverse (34243403), we get a palindrome (64677646).

The spelling of 30434243 in words is "thirty million, four hundred thirty-four thousand, two hundred forty-three".

Divisors: 1 7 49 53 371 2597 11719 82033 574231 621107 4347749 30434243