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13203132140 = 2251160014237
BaseRepresentation
bin11000100101111011…
…11100111011101100
31021002011000121101002
430102331330323230
5204020000212030
610022044535432
7645120525422
oct142275747354
937064017332
1013203132140
115665907660
122685851578
1313254b4833
148d3725112
155241c9245
hex312f7ceec

13203132140 has 24 divisors (see below), whose sum is σ = 30247175952. Its totient is φ = 4801138880.

The previous prime is 13203132119. The next prime is 13203132143. The reversal of 13203132140 is 4123130231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (13203132143) 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, 30006899 + ... + 30007338.

It is an arithmetic number, because the mean of its divisors is an integer number (1260298998).

Almost surely, 213203132140 is an apocalyptic number.

13203132140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13203132140 is an abundant number, since it is smaller than the sum of its proper divisors (17044043812).

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

13203132140 is a wasteful number, since it uses less digits than its factorization.

13203132140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60014257 (or 60014255 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13203132140 its reverse (4123130231), we get a palindrome (17326262371).

The spelling of 13203132140 in words is "thirteen billion, two hundred three million, one hundred thirty-two thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 60014237 120028474 240056948 300071185 600142370 660156607 1200284740 1320313214 2640626428 3300783035 6601566070 13203132140