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13200660651 = 34400220217
BaseRepresentation
bin11000100101101001…
…00001100010101011
31021001222101001010110
430102310201202223
5204013332120101
610021515545403
7645060523053
oct142264414253
937058331113
1013200660651
115664479802
122684a5b263
131324b2a909
148d3280563
15523d8bcd6
hex312d218ab

13200660651 has 4 divisors (see below), whose sum is σ = 17600880872. Its totient is φ = 8800440432.

The previous prime is 13200660631. The next prime is 13200660659. The reversal of 13200660651 is 15606600231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15606600231 = 35202200077.

It is not a de Polignac number, because 13200660651 - 29 = 13200660139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13200660659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2200110106 + ... + 2200110111.

It is an arithmetic number, because the mean of its divisors is an integer number (4400220218).

Almost surely, 213200660651 is an apocalyptic number.

13200660651 is a deficient number, since it is larger than the sum of its proper divisors (4400220221).

13200660651 is an equidigital number, since it uses as much as digits as its factorization.

13200660651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400220220.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 13200660651 in words is "thirteen billion, two hundred million, six hundred sixty thousand, six hundred fifty-one".

Divisors: 1 3 4400220217 13200660651