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51163301 = 721044149
BaseRepresentation
bin1100001100101…
…1000010100101
310120021100212002
43003023002211
5101044211201
65024335045
71160611100
oct303130245
9116240762
1051163301
1126975822
1215174485
13a7a4a57
146b1b737
15475976b
hex30cb0a5

51163301 has 6 divisors (see below), whose sum is σ = 59516550. Its totient is φ = 43854216.

The previous prime is 51163297. The next prime is 51163309. The reversal of 51163301 is 10336115.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 50481025 + 682276 = 7105^2 + 826^2 .

It is not a de Polignac number, because 51163301 - 22 = 51163297 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51163309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 522026 + ... + 522123.

It is an arithmetic number, because the mean of its divisors is an integer number (9919425).

Almost surely, 251163301 is an apocalyptic number.

It is an amenable number.

51163301 is a deficient number, since it is larger than the sum of its proper divisors (8353249).

51163301 is a wasteful number, since it uses less digits than its factorization.

51163301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044163 (or 1044156 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 51163301 is about 7152.8526477203. The cubic root of 51163301 is about 371.2383658641.

Adding to 51163301 its reverse (10336115), we get a palindrome (61499416).

The spelling of 51163301 in words is "fifty-one million, one hundred sixty-three thousand, three hundred one".

Divisors: 1 7 49 1044149 7309043 51163301