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13047142811 = 17477468313
BaseRepresentation
bin11000010011010101…
…11001100110011011
31020200021111112020112
430021222321212123
5203210032032221
65554353314535
7641214612143
oct141152714633
936607445215
1013047142811
11559585455a
122641565a4b
1312cc099761
148bab1b923
1551566515b
hex309ab999b

13047142811 has 4 divisors (see below), whose sum is σ = 13054612872. Its totient is φ = 13039672752.

The previous prime is 13047142799. The next prime is 13047142873. The reversal of 13047142811 is 11824174031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13047142811 - 218 = 13046880667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13047192811) 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, 3732410 + ... + 3735903.

It is an arithmetic number, because the mean of its divisors is an integer number (3263653218).

Almost surely, 213047142811 is an apocalyptic number.

13047142811 is a deficient number, since it is larger than the sum of its proper divisors (7470061).

13047142811 is an equidigital number, since it uses as much as digits as its factorization.

13047142811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7470060.

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 13047142811 in words is "thirteen billion, forty-seven million, one hundred forty-two thousand, eight hundred eleven".

Divisors: 1 1747 7468313 13047142811