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13130516 = 2272320389
BaseRepresentation
bin110010000101…
…101100010100
3220201002200102
4302011230110
511330134031
61145233232
7216415250
oct62055424
926632612
1013130516
117459173
124492818
132949749
141a5b260
1512457cb
hexc85b14

13130516 has 24 divisors (see below), whose sum is σ = 27404160. Its totient is φ = 5382432.

The previous prime is 13130503. The next prime is 13130519. The reversal of 13130516 is 61503131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130519) 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, 9551 + ... + 10838.

It is an arithmetic number, because the mean of its divisors is an integer number (1141840).

Almost surely, 213130516 is an apocalyptic number.

It is an amenable number.

13130516 is an abundant number, since it is smaller than the sum of its proper divisors (14273644).

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

13130516 is a wasteful number, since it uses less digits than its factorization.

13130516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20423 (or 20421 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 13130516 is about 3623.6053869040. The cubic root of 13130516 is about 235.9177392131.

Adding to 13130516 its reverse (61503131), we get a palindrome (74633647).

The spelling of 13130516 in words is "thirteen million, one hundred thirty thousand, five hundred sixteen".

Divisors: 1 2 4 7 14 23 28 46 92 161 322 644 20389 40778 81556 142723 285446 468947 570892 937894 1875788 3282629 6565258 13130516