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13123241142 = 23111089118257
BaseRepresentation
bin11000011100011010…
…01100010010110110
31020212120200201112020
430032031030102312
5203334022204032
610010112334010
7643130465154
oct141615142266
936776621466
1013123241142
115624800340
122662b44306
131311a91c5b
148c6c8a3d4
1551c197b2c
hex30e34c4b6

13123241142 has 32 divisors (see below), whose sum is σ = 28636723584. Its totient is φ = 3976156800.

The previous prime is 13123241057. The next prime is 13123241143. The reversal of 13123241142 is 24114232131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123241143) 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, 709678 + ... + 727934.

It is an arithmetic number, because the mean of its divisors is an integer number (894897612).

Almost surely, 213123241142 is an apocalyptic number.

13123241142 is an abundant number, since it is smaller than the sum of its proper divisors (15513482442).

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

13123241142 is a wasteful number, since it uses less digits than its factorization.

13123241142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29164.

The product of its digits is 1152, while the sum is 24.

Adding to 13123241142 its reverse (24114232131), we get a palindrome (37237473273).

The spelling of 13123241142 in words is "thirteen billion, one hundred twenty-three million, two hundred forty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 10891 18257 21782 32673 36514 54771 65346 109542 119801 200827 239602 359403 401654 602481 718806 1204962 198836987 397673974 596510961 1193021922 2187206857 4374413714 6561620571 13123241142