Search a number
-
+
51305010 = 2351710167
BaseRepresentation
bin1100001110110…
…1101000110010
310120112120020120
43003231220302
5101113230020
65031351110
71162041201
oct303555062
9116476216
1051305010
1126a62239
1215222496
13a8243c3
146b57238
154786740
hex30eda32

51305010 has 16 divisors (see below), whose sum is σ = 123132096. Its totient is φ = 13681328.

The previous prime is 51304961. The next prime is 51305011. The reversal of 51305010 is 1050315.

51305010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×513050102 = 5264408102200200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (51305011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 855054 + ... + 855113.

It is an arithmetic number, because the mean of its divisors is an integer number (7695756).

Almost surely, 251305010 is an apocalyptic number.

51305010 is an abundant number, since it is smaller than the sum of its proper divisors (71827086).

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

51305010 is a wasteful number, since it uses less digits than its factorization.

51305010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710177.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 51305010 is about 7162.7515662628. The cubic root of 51305010 is about 371.5807943964.

Adding to 51305010 its reverse (1050315), we get a palindrome (52355325).

The spelling of 51305010 in words is "fifty-one million, three hundred five thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 1710167 3420334 5130501 8550835 10261002 17101670 25652505 51305010