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13404221213 = 193740946619
BaseRepresentation
bin11000111101111010…
…00010111100011101
31021121011101222201112
430132331002330131
5204422440034323
610054030551405
7653112000065
oct143675027435
937534358645
1013404221213
115759373879
122721068565
131358060756
1491230c3a5
15536b9b178
hex31ef42f1d

13404221213 has 16 divisors (see below), whose sum is σ = 14526792000. Its totient is φ = 12325053312.

The previous prime is 13404221197. The next prime is 13404221231. The reversal of 13404221213 is 31212240431.

It is a cyclic number.

It is not a de Polignac number, because 13404221213 - 24 = 13404221197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404221293) 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, 264218 + ... + 310836.

It is an arithmetic number, because the mean of its divisors is an integer number (907924500).

Almost surely, 213404221213 is an apocalyptic number.

It is an amenable number.

13404221213 is a deficient number, since it is larger than the sum of its proper divisors (1122570787).

13404221213 is a wasteful number, since it uses less digits than its factorization.

13404221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47084.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 13404221213 its reverse (31212240431), we get a palindrome (44616461644).

The spelling of 13404221213 in words is "thirteen billion, four hundred four million, two hundred twenty-one thousand, two hundred thirteen".

Divisors: 1 19 37 409 703 7771 15133 46619 287527 885761 1724903 19067171 32773157 362276249 705485327 13404221213