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13120210230 = 235437340341
BaseRepresentation
bin11000011100000011…
…01000010100110110
31020212100222201220020
430032001220110312
5203332233211410
610005523350010
7643062642531
oct141601502466
936770881806
1013120210230
115623020156
122661b22306
13131127050a
148c66dba18
1551bc99a70
hex30e068536

13120210230 has 16 divisors (see below), whose sum is σ = 31488504624. Its totient is φ = 3498722720.

The previous prime is 13120210219. The next prime is 13120210237. The reversal of 13120210230 is 3201202131.

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 (13120210237) 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, 218670141 + ... + 218670200.

It is an arithmetic number, because the mean of its divisors is an integer number (1968031539).

Almost surely, 213120210230 is an apocalyptic number.

13120210230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13120210230 is an abundant number, since it is smaller than the sum of its proper divisors (18368294394).

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

13120210230 is a wasteful number, since it uses less digits than its factorization.

13120210230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437340351.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13120210230 its reverse (3201202131), we get a palindrome (16321412361).

The spelling of 13120210230 in words is "thirteen billion, one hundred twenty million, two hundred ten thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 437340341 874680682 1312021023 2186701705 2624042046 4373403410 6560105115 13120210230