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56115 = 3252943
BaseRepresentation
bin1101101100110011
32211222100
431230303
53243430
61111443
7322413
oct155463
984870
1056115
1139184
1228583
131c707
1416643
1511960
hexdb33

56115 has 24 divisors (see below), whose sum is σ = 102960. Its totient is φ = 28224.

The previous prime is 56113. The next prime is 56123. The reversal of 56115 is 51165.

Adding to 56115 its product of digits (150), we get a palindrome (56265).

Subtracting from 56115 its reverse (51165), we obtain a triangular number (4950 = T99).

It can be divided in two parts, 561 and 15, that added together give a square (576 = 242).

It is not a de Polignac number, because 56115 - 21 = 56113 is a prime.

It is a D-number.

56115 is a lucky number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 56115.

It is not an unprimeable number, because it can be changed into a prime (56113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1284 + ... + 1326.

It is an arithmetic number, because the mean of its divisors is an integer number (4290).

256115 is an apocalyptic number.

56115 is a deficient number, since it is larger than the sum of its proper divisors (46845).

56115 is a wasteful number, since it uses less digits than its factorization.

56115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 80 counting only the distinct ones).

The product of its digits is 150, while the sum is 18.

The square root of 56115 is about 236.8860485550. The cubic root of 56115 is about 38.2847946877.

The spelling of 56115 in words is "fifty-six thousand, one hundred fifteen".

Divisors: 1 3 5 9 15 29 43 45 87 129 145 215 261 387 435 645 1247 1305 1935 3741 6235 11223 18705 56115