Search a number
-
+
51300234 = 2322850013
BaseRepresentation
bin1100001110110…
…0011110001010
310120112022200200
43003230132022
5101113101414
65031313030
71162021236
oct303543612
9116468620
1051300234
1126a59697
121521b776
13a82218b
146b555c6
154785109
hex30ec78a

51300234 has 12 divisors (see below), whose sum is σ = 111150546. Its totient is φ = 17100072.

The previous prime is 51300211. The next prime is 51300289. The reversal of 51300234 is 43200315.

51300234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43599609 + 7700625 = 6603^2 + 2775^2 .

It is a super-3 number, since 3×513002343 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2850013 = 51300234 / (5 + 1 + 3 + 0 + 0 + 2 + 3 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1424989 + ... + 1425024.

Almost surely, 251300234 is an apocalyptic number.

51300234 is an abundant number, since it is smaller than the sum of its proper divisors (59850312).

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

51300234 is a wasteful number, since it uses less digits than its factorization.

51300234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850021 (or 2850018 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 51300234 is about 7162.4181670718. The cubic root of 51300234 is about 371.5692638464.

Adding to 51300234 its reverse (43200315), we get a palindrome (94500549).

The spelling of 51300234 in words is "fifty-one million, three hundred thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 18 2850013 5700026 8550039 17100078 25650117 51300234