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51310127 = 1119383641
BaseRepresentation
bin1100001110111…
…0111000101111
310120112211021002
43003232320233
5101113411002
65031430515
71162062131
oct303567057
9116484232
1051310127
1126a66070
121522543b
13a82682b
146b59051
154788002
hex30eee2f

51310127 has 16 divisors (see below), whose sum is σ = 59166720. Its totient is φ = 44006400.

The previous prime is 51310109. The next prime is 51310151. The reversal of 51310127 is 72101315.

It is a cyclic number.

It is not a de Polignac number, because 51310127 - 28 = 51309871 is a prime.

It is a super-2 number, since 2×513101272 = 5265458265512258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51310099 and 51310108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51310027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79727 + ... + 80367.

It is an arithmetic number, because the mean of its divisors is an integer number (3697920).

Almost surely, 251310127 is an apocalyptic number.

51310127 is a deficient number, since it is larger than the sum of its proper divisors (7856593).

51310127 is a wasteful number, since it uses less digits than its factorization.

51310127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 51310127 is about 7163.1087524901. The cubic root of 51310127 is about 371.5931474182.

The spelling of 51310127 in words is "fifty-one million, three hundred ten thousand, one hundred twenty-seven".

Divisors: 1 11 19 209 383 641 4213 7051 7277 12179 80047 133969 245503 2700533 4664557 51310127