Search a number
-
+
13210900 = 2252132109
BaseRepresentation
bin110010011001…
…010100010100
3220212011221121
4302121110110
511340222100
61151053324
7220201513
oct62312424
926764847
1013210900
1175035aa
124511244
132977201
141a7c67a
15125e51a
hexc99514

13210900 has 18 divisors (see below), whose sum is σ = 28667870. Its totient is φ = 5284320.

The previous prime is 13210891. The next prime is 13210903. The reversal of 13210900 is 901231.

It can be written as a sum of positive squares in 3 ways, for example, as 2268036 + 10942864 = 1506^2 + 3308^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13210903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65955 + ... + 66154.

Almost surely, 213210900 is an apocalyptic number.

13210900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13210900 is an abundant number, since it is smaller than the sum of its proper divisors (15456970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13210900 is a wasteful number, since it uses less digits than its factorization.

13210900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132123 (or 132116 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 13210900 is about 3634.6801785026. The cubic root of 13210900 is about 236.3981834925.

The spelling of 13210900 in words is "thirteen million, two hundred ten thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 132109 264218 528436 660545 1321090 2642180 3302725 6605450 13210900