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13230431022 = 2353199209071
BaseRepresentation
bin11000101001001100…
…00101101100101110
31021011001101112101210
430110212011230232
5204043442243042
610024502015250
7645601544124
oct142446055456
937131345353
1013230431022
11567a262716
122692a17526
13132b052213
148d71cd914
155267bca9c
hex314985b2e

13230431022 has 32 divisors (see below), whose sum is σ = 27095731200. Its totient is φ = 4305169440.

The previous prime is 13230431021. The next prime is 13230431047. The reversal of 13230431022 is 22013403231.

It is a self number, because there is not a number n which added to its sum of digits gives 13230431022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230431021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41254 + ... + 167817.

It is an arithmetic number, because the mean of its divisors is an integer number (846741600).

Almost surely, 213230431022 is an apocalyptic number.

13230431022 is an abundant number, since it is smaller than the sum of its proper divisors (13865300178).

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

13230431022 is a wasteful number, since it uses less digits than its factorization.

13230431022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209328.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13230431022 its reverse (22013403231), we get a palindrome (35243834253).

The spelling of 13230431022 in words is "thirteen billion, two hundred thirty million, four hundred thirty-one thousand, twenty-two".

Divisors: 1 2 3 6 53 106 159 199 318 398 597 1194 10547 21094 31641 63282 209071 418142 627213 1254426 11080763 22161526 33242289 41605129 66484578 83210258 124815387 249630774 2205071837 4410143674 6615215511 13230431022