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5215 = 57149
BaseRepresentation
bin1010001011111
321011011
41101133
5131330
640051
721130
oct12137
97134
105215
113a11
123027
1324b2
141c87
15182a
hex145f

5215 has 8 divisors (see below), whose sum is σ = 7200. Its totient is φ = 3552.

The previous prime is 5209. The next prime is 5227. The reversal of 5215 is 5125.

5215 = T20 + T21 + ... + T33.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5215 - 27 = 5087 is a prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 5195 and 5204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40 + ... + 109.

It is an arithmetic number, because the mean of its divisors is an integer number (900).

25215 is an apocalyptic number.

5215 is a deficient number, since it is larger than the sum of its proper divisors (1985).

5215 is a wasteful number, since it uses less digits than its factorization.

5215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161.

The product of its digits is 50, while the sum is 13.

The square root of 5215 is about 72.2149568995. The cubic root of 5215 is about 17.3414245590.

It can be divided in two parts, 52 and 15, that multiplied together give a triangular number (780 = T39).

The spelling of 5215 in words is "five thousand, two hundred fifteen".

Divisors: 1 5 7 35 149 745 1043 5215