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13200311012 = 2273831230913
BaseRepresentation
bin11000100101100110…
…01100001011100100
31021001221201021111212
430102303030023210
5204013234423022
610021504250552
7645054535520
oct142263141344
937057637455
1013200311012
115664260049
122684910a58
131324a37725
148d31ccd80
15523d1d3e2
hex312ccc2e4

13200311012 has 24 divisors (see below), whose sum is σ = 26469574656. Its totient is φ = 5642500608.

The previous prime is 13200310997. The next prime is 13200311017. The reversal of 13200311012 is 21011300231.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (13200311017) 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, 604733 + ... + 626180.

It is an arithmetic number, because the mean of its divisors is an integer number (1102898944).

Almost surely, 213200311012 is an apocalyptic number.

It is an amenable number.

13200311012 is an abundant number, since it is smaller than the sum of its proper divisors (13269263644).

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

13200311012 is a wasteful number, since it uses less digits than its factorization.

13200311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231307 (or 1231305 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 13200311012 its reverse (21011300231), we get a palindrome (34211611243).

The spelling of 13200311012 in words is "thirteen billion, two hundred million, three hundred eleven thousand, twelve".

Divisors: 1 2 4 7 14 28 383 766 1532 2681 5362 10724 1230913 2461826 4923652 8616391 17232782 34465564 471439679 942879358 1885758716 3300077753 6600155506 13200311012