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1213200310112 = 25734715608279
BaseRepresentation
bin10001101001111000010…
…111111001111101100000
311021222111000102100020222
4101221320113321331200
5124334113234410422
62325200405022212
7153436143326120
oct21517027717540
94258430370228
101213200310112
11428573a4649a
121771623b4968
138a534321bab
1442a0d716c80
1521858a08842
hex11a785f9f60

1213200310112 has 48 divisors (see below), whose sum is σ = 2737567445760. Its totient is φ = 518444562048.

The previous prime is 1213200310099. The next prime is 1213200310123. The reversal of 1213200310112 is 2110130023121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7726412 + ... + 7881867.

It is an arithmetic number, because the mean of its divisors is an integer number (57032655120).

Almost surely, 21213200310112 is an apocalyptic number.

It is an amenable number.

1213200310112 is an abundant number, since it is smaller than the sum of its proper divisors (1524367135648).

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

1213200310112 is a wasteful number, since it uses less digits than its factorization.

1213200310112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15608643 (or 15608635 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1213200310112 its reverse (2110130023121), we get a palindrome (3323330333233).

The spelling of 1213200310112 in words is "one trillion, two hundred thirteen billion, two hundred million, three hundred ten thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 347 694 1388 2429 2776 4858 5552 9716 11104 19432 38864 77728 15608279 31216558 62433116 109257953 124866232 218515906 249732464 437031812 499464928 874063624 1748127248 3496254496 5416072813 10832145626 21664291252 37912509691 43328582504 75825019382 86657165008 151650038764 173314330016 303300077528 606600155056 1213200310112