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51107 = 73149
BaseRepresentation
bin1100011110100011
32121002212
430132203
53113412
61032335
7302000
oct143643
977085
1051107
1135441
12256ab
131a354
14148a7
1510222
hexc7a3

51107 has 8 divisors (see below), whose sum is σ = 60000. Its totient is φ = 43512.

The previous prime is 51071. The next prime is 51109. The reversal of 51107 is 70115.

It is not a de Polignac number, because 51107 - 26 = 51043 is a prime.

It is a super-2 number, since 2×511072 = 5223850898, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 51091 and 51100.

It is not an unprimeable number, because it can be changed into a prime (51109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269 + ... + 417.

It is an arithmetic number, because the mean of its divisors is an integer number (7500).

251107 is an apocalyptic number.

51107 is a deficient number, since it is larger than the sum of its proper divisors (8893).

51107 is an equidigital number, since it uses as much as digits as its factorization.

51107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 35, while the sum is 14.

The square root of 51107 is about 226.0685736674. The cubic root of 51107 is about 37.1102143467.

The spelling of 51107 in words is "fifty-one thousand, one hundred seven".

Divisors: 1 7 49 149 343 1043 7301 51107