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13213141444 = 223303285361
BaseRepresentation
bin11000100111001000…
…01000100111000100
31021002211212010120001
430103210020213010
5204030031011234
610023043251044
7645301564156
oct142344104704
937084763501
1013213141444
115670523808
122689079a84
1313275aa6b9
148d4bacad6
15525004d14
hex3139089c4

13213141444 has 6 divisors (see below), whose sum is σ = 23122997534. Its totient is φ = 6606570720.

The previous prime is 13213141423. The next prime is 13213141451. The reversal of 13213141444 is 44414131231.

It can be written as a sum of positive squares in only one way, i.e., 12152857600 + 1060283844 = 110240^2 + 32562^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1651642677 + ... + 1651642684.

Almost surely, 213213141444 is an apocalyptic number.

It is an amenable number.

13213141444 is a deficient number, since it is larger than the sum of its proper divisors (9909856090).

13213141444 is a wasteful number, since it uses less digits than its factorization.

13213141444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303285365 (or 3303285363 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

Adding to 13213141444 its reverse (44414131231), we get a palindrome (57627272675).

The spelling of 13213141444 in words is "thirteen billion, two hundred thirteen million, one hundred forty-one thousand, four hundred forty-four".

Divisors: 1 2 4 3303285361 6606570722 13213141444