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51207377 = 13103167229
BaseRepresentation
bin1100001101010…
…1110011010001
310120100121022112
43003111303101
5101102114002
65025315105
71161153434
oct303256321
9116317275
1051207377
11269a5951
1215195a95
13a7bbb30
146b2d81b
154767852
hex30d5cd1

51207377 has 16 divisors (see below), whose sum is σ = 56259840. Its totient is φ = 46325952.

The previous prime is 51207353. The next prime is 51207389. The reversal of 51207377 is 77370215.

51207377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51207377 - 26 = 51207313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51206377) 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 15 ways as a sum of consecutive naturals, for example, 223499 + ... + 223727.

It is an arithmetic number, because the mean of its divisors is an integer number (3516240).

Almost surely, 251207377 is an apocalyptic number.

It is an amenable number.

51207377 is a deficient number, since it is larger than the sum of its proper divisors (5052463).

51207377 is a wasteful number, since it uses less digits than its factorization.

51207377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 51207377 is about 7155.9329929786. The cubic root of 51207377 is about 371.3449396872.

The spelling of 51207377 in words is "fifty-one million, two hundred seven thousand, three hundred seventy-seven".

Divisors: 1 13 103 167 229 1339 2171 2977 17201 23587 38243 223613 306631 497159 3939029 51207377