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13120213443 = 319012300581
BaseRepresentation
bin11000011100000011…
…01001000111000011
31020212100222220022020
430032001221013003
5203332233312233
610005523412523
7643062655101
oct141601510703
936770886266
1013120213443
115623022607
122661b24143
131311271b0c
148c66dcc71
1551bc9a9b3
hex30e0691c3

13120213443 has 8 divisors (see below), whose sum is σ = 17502827856. Its totient is φ = 8742204000.

The previous prime is 13120213433. The next prime is 13120213451. The reversal of 13120213443 is 34431202131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13120213443 - 214 = 13120197059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13120213433) 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, 1144588 + ... + 1155993.

It is an arithmetic number, because the mean of its divisors is an integer number (2187853482).

Almost surely, 213120213443 is an apocalyptic number.

13120213443 is a deficient number, since it is larger than the sum of its proper divisors (4382614413).

13120213443 is a wasteful number, since it uses less digits than its factorization.

13120213443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302485.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13120213443 its reverse (34431202131), we get a palindrome (47551415574).

The spelling of 13120213443 in words is "thirteen billion, one hundred twenty million, two hundred thirteen thousand, four hundred forty-three".

Divisors: 1 3 1901 5703 2300581 6901743 4373404481 13120213443