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13513430 = 257712719
BaseRepresentation
bin110011100011…
…001011010110
3221102112221102
4303203023112
511424412210
61201350102
7222601520
oct63431326
927375842
1013513430
11769a927
124638332
132a51b18
141b1aa10
1512bdea5
hexce32d6

13513430 has 32 divisors (see below), whose sum is σ = 28200960. Its totient is φ = 4566240.

The previous prime is 13513429. The next prime is 13513433. The reversal of 13513430 is 3431531.

It is a happy number.

It is a super-2 number, since 2×135134302 = 365225580729800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13513433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3611 + ... + 6329.

It is an arithmetic number, because the mean of its divisors is an integer number (881280).

Almost surely, 213513430 is an apocalyptic number.

13513430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13513430 is an abundant number, since it is smaller than the sum of its proper divisors (14687530).

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

13513430 is a wasteful number, since it uses less digits than its factorization.

13513430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 13513430 is about 3676.0617513856. The cubic root of 13513430 is about 238.1890901308.

Adding to 13513430 its reverse (3431531), we get a palindrome (16944961).

The spelling of 13513430 in words is "thirteen million, five hundred thirteen thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 71 142 355 497 710 994 2485 2719 4970 5438 13595 19033 27190 38066 95165 190330 193049 386098 965245 1351343 1930490 2702686 6756715 13513430