Search a number
-
+
13120210 = 251399439
BaseRepresentation
bin110010000011…
…001011010010
3220200120112201
4302003023102
511324321320
61145113414
7216343225
oct62031322
926616481
1013120210
117451454
12448886a
132944b4c
141a575bc
15124270a
hexc832d2

13120210 has 16 divisors (see below), whose sum is σ = 23788800. Its totient is φ = 5209776.

The previous prime is 13120201. The next prime is 13120213. The reversal of 13120210 is 1202131.

13120210 = T2956 + T2957 + T2958.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (13120213) 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, 3330 + ... + 6109.

It is an arithmetic number, because the mean of its divisors is an integer number (1486800).

Almost surely, 213120210 is an apocalyptic number.

13120210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13120210 is the 2958-th centered triangular number.

13120210 is a deficient number, since it is larger than the sum of its proper divisors (10668590).

13120210 is a wasteful number, since it uses less digits than its factorization.

13120210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9585.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 13120210 is about 3622.1830434146. The cubic root of 13120210 is about 235.8559999634.

Adding to 13120210 its reverse (1202131), we get a palindrome (14322341).

The spelling of 13120210 in words is "thirteen million, one hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 10 139 278 695 1390 9439 18878 47195 94390 1312021 2624042 6560105 13120210