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13201317040 = 245198685077
BaseRepresentation
bin11000100101101110…
…00001110010110000
31021002000121101112011
430102313001302300
5204014014121130
610021542012304
7645066225532
oct142267016260
937060541464
1013201317040
11566488797a
122685117094
131324cca602
148d33b1852
15523e6b52a
hex312dc1cb0

13201317040 has 40 divisors (see below), whose sum is σ = 32308490160. Its totient is φ = 5002603776.

The previous prime is 13201317011. The next prime is 13201317161. The reversal of 13201317040 is 4071310231.

It is a tau number, because it is divible by the number of its divisors (40).

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, 4341019 + ... + 4344058.

It is an arithmetic number, because the mean of its divisors is an integer number (807712254).

Almost surely, 213201317040 is an apocalyptic number.

13201317040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13201317040 is an abundant number, since it is smaller than the sum of its proper divisors (19107173120).

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

13201317040 is a wasteful number, since it uses less digits than its factorization.

13201317040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685109 (or 8685103 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 13201317040 its reverse (4071310231), we get a palindrome (17272627271).

The spelling of 13201317040 in words is "thirteen billion, two hundred one million, three hundred seventeen thousand, forty".

Divisors: 1 2 4 5 8 10 16 19 20 38 40 76 80 95 152 190 304 380 760 1520 8685077 17370154 34740308 43425385 69480616 86850770 138961232 165016463 173701540 330032926 347403080 660065852 694806160 825082315 1320131704 1650164630 2640263408 3300329260 6600658520 13201317040