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13142003444 = 22163118716981
BaseRepresentation
bin11000011110101001…
…10000111011110100
31020220212222221120022
430033110300323310
5203403323102234
610012022424312
7643446120563
oct141724607364
936825887508
1013142003444
115634355779
122669292098
131315930bcb
148c9571bda
1551db51e2e
hex30f530ef4

13142003444 has 24 divisors (see below), whose sum is σ = 23160459168. Its totient is φ = 6524802720.

The previous prime is 13142003423. The next prime is 13142003477. The reversal of 13142003444 is 44430024131.

It is a super-2 number, since 2×131420034442 (a number of 21 digits) contains 22 as substring.

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, 765434 + ... + 782414.

It is an arithmetic number, because the mean of its divisors is an integer number (965019132).

Almost surely, 213142003444 is an apocalyptic number.

It is an amenable number.

13142003444 is a deficient number, since it is larger than the sum of its proper divisors (10018455724).

13142003444 is a wasteful number, since it uses less digits than its factorization.

13142003444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18335 (or 18333 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 13142003444 its reverse (44430024131), we get a palindrome (57572027575).

The spelling of 13142003444 in words is "thirteen billion, one hundred forty-two million, three thousand, four hundred forty-four".

Divisors: 1 2 4 163 326 652 1187 2374 4748 16981 33962 67924 193481 386962 773924 2767903 5535806 11071612 20156447 40312894 80625788 3285500861 6571001722 13142003444