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13240230 = 2351094049
BaseRepresentation
bin110010100000…
…011110100110
3220220200011220
4302200132212
511342141410
61151441210
7220353153
oct62403646
926820156
1013240230
117523643
124526206
132987673
141a8922a
151268070
hexca07a6

13240230 has 32 divisors (see below), whose sum is σ = 32076000. Its totient is φ = 3497472.

The previous prime is 13240223. The next prime is 13240231. The reversal of 13240230 is 3204231.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1246 + ... + 5294.

It is an arithmetic number, because the mean of its divisors is an integer number (1002375).

Almost surely, 213240230 is an apocalyptic number.

13240230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13240230 is an abundant number, since it is smaller than the sum of its proper divisors (18835770).

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

13240230 is a wasteful number, since it uses less digits than its factorization.

13240230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 13240230 is about 3638.7126844531. The cubic root of 13240230 is about 236.5729995887.

Adding to 13240230 its reverse (3204231), we get a palindrome (16444461).

The spelling of 13240230 in words is "thirteen million, two hundred forty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 109 218 327 545 654 1090 1635 3270 4049 8098 12147 20245 24294 40490 60735 121470 441341 882682 1324023 2206705 2648046 4413410 6620115 13240230