Search a number
-
+
30051430 = 2518116603
BaseRepresentation
bin111001010100…
…0110001100110
32002112202210221
41302220301212
530143121210
62552034554
7513301333
oct162506146
962482727
1030051430
1115a660a2
12a092a5a
1362c2516
143dc398a
1529891da
hex1ca8c66

30051430 has 16 divisors (see below), whose sum is σ = 54394704. Its totient is φ = 11953440.

The previous prime is 30051419. The next prime is 30051433. The reversal of 30051430 is 3415003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30051433) 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, 6492 + ... + 10111.

It is an arithmetic number, because the mean of its divisors is an integer number (3399669).

Almost surely, 230051430 is an apocalyptic number.

30051430 is a deficient number, since it is larger than the sum of its proper divisors (24343274).

30051430 is a wasteful number, since it uses less digits than its factorization.

30051430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16791.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30051430 is about 5481.9184598095. The cubic root of 30051430 is about 310.9007103009.

Adding to 30051430 its reverse (3415003), we get a palindrome (33466433).

The spelling of 30051430 in words is "thirty million, fifty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 181 362 905 1810 16603 33206 83015 166030 3005143 6010286 15025715 30051430