Search a number
-
+
13331825 = 52131719127
BaseRepresentation
bin110010110110…
…110101110001
3221002022211022
4302312311301
511403104300
61153425225
7221214203
oct62666561
927068738
1013331825
117586441
12456b215
1329ba270
141ab0773
151285285
hexcb6d71

13331825 has 48 divisors (see below), whose sum is σ = 19998720. Its totient is φ = 8709120.

The previous prime is 13331821. The next prime is 13331831. The reversal of 13331825 is 52813331.

It is not a de Polignac number, because 13331825 - 22 = 13331821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13331794 and 13331803.

It is not an unprimeable number, because it can be changed into a prime (13331821) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104912 + ... + 105038.

It is an arithmetic number, because the mean of its divisors is an integer number (416640).

Almost surely, 213331825 is an apocalyptic number.

It is an amenable number.

13331825 is a deficient number, since it is larger than the sum of its proper divisors (6666895).

13331825 is a wasteful number, since it uses less digits than its factorization.

13331825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 181 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 13331825 is about 3651.2771738119. The cubic root of 13331825 is about 237.1172783276.

The spelling of 13331825 in words is "thirteen million, three hundred thirty-one thousand, eight hundred twenty-five".

Divisors: 1 5 13 17 19 25 65 85 95 127 221 247 323 325 425 475 635 1105 1235 1615 1651 2159 2413 3175 4199 5525 6175 8075 8255 10795 12065 20995 28067 31369 41021 41275 53975 60325 104975 140335 156845 205105 533273 701675 784225 1025525 2666365 13331825