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13243133140 = 2251031642247
BaseRepresentation
bin11000101010101101…
…00010110011010100
31021011221021212102121
430111112202303110
5204110220230030
610030034145324
7646114526416
oct142526426324
937157255377
1013243133140
115686448a36
122697122244
13133087b973
148d8b789b6
1552797b47a
hex3155a2cd4

13243133140 has 24 divisors (see below), whose sum is σ = 27837597312. Its totient is φ = 5292107040.

The previous prime is 13243133119. The next prime is 13243133149. The reversal of 13243133140 is 4133134231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13243133149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300504 + ... + 341743.

It is an arithmetic number, because the mean of its divisors is an integer number (1159899888).

Almost surely, 213243133140 is an apocalyptic number.

13243133140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13243133140 is an abundant number, since it is smaller than the sum of its proper divisors (14594464172).

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

13243133140 is a wasteful number, since it uses less digits than its factorization.

13243133140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643287 (or 643285 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 13243133140 its reverse (4133134231), we get a palindrome (17376267371).

The spelling of 13243133140 in words is "thirteen billion, two hundred forty-three million, one hundred thirty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1031 2062 4124 5155 10310 20620 642247 1284494 2568988 3211235 6422470 12844940 662156657 1324313314 2648626628 3310783285 6621566570 13243133140