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51211060 = 2255414733
BaseRepresentation
bin1100001101011…
…0101100110100
310120100210100221
43003112230310
5101102223220
65025344124
71161200245
oct303265464
9116323327
1051211060
11269a869a
1215198044
13a7c0704
146b30ccc
1547689aa
hex30d6b34

51211060 has 24 divisors (see below), whose sum is σ = 107764776. Its totient is φ = 20442240.

The previous prime is 51211049. The next prime is 51211063. The reversal of 51211060 is 6011215.

It is a happy number.

51211060 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 4 ways, for example, as 459684 + 50751376 = 678^2 + 7124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51211063) 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, 8454 + ... + 13186.

It is an arithmetic number, because the mean of its divisors is an integer number (4490199).

Almost surely, 251211060 is an apocalyptic number.

It is an amenable number.

51211060 is an abundant number, since it is smaller than the sum of its proper divisors (56553716).

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

51211060 is a wasteful number, since it uses less digits than its factorization.

51211060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283 (or 5281 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 51211060 is about 7156.1903272621. The cubic root of 51211060 is about 371.3538422497.

Adding to 51211060 its reverse (6011215), we get a palindrome (57222275).

The spelling of 51211060 in words is "fifty-one million, two hundred eleven thousand, sixty".

Divisors: 1 2 4 5 10 20 541 1082 2164 2705 4733 5410 9466 10820 18932 23665 47330 94660 2560553 5121106 10242212 12802765 25605530 51211060