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13011042243 = 319228263899
BaseRepresentation
bin11000001111000010…
…01011111111000011
31020120202120102120110
430013201023333003
5203121311322433
65551023442403
7640266014523
oct140741137703
936522512513
1013011042243
115577437681
122631456403
1312c4769a84
148b6001683
155123d3963
hex30784bfc3

13011042243 has 8 divisors (see below), whose sum is σ = 18261112000. Its totient is φ = 8217500328.

The previous prime is 13011042229. The next prime is 13011042251. The reversal of 13011042243 is 34224011031.

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

It is not a de Polignac number, because 13011042243 - 24 = 13011042227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13011042203) 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, 114131893 + ... + 114132006.

It is an arithmetic number, because the mean of its divisors is an integer number (2282639000).

Almost surely, 213011042243 is an apocalyptic number.

13011042243 is a deficient number, since it is larger than the sum of its proper divisors (5250069757).

13011042243 is a wasteful number, since it uses less digits than its factorization.

13011042243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228263921.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13011042243 its reverse (34224011031), we get a palindrome (47235053274).

The spelling of 13011042243 in words is "thirteen billion, eleven million, forty-two thousand, two hundred forty-three".

Divisors: 1 3 19 57 228263899 684791697 4337014081 13011042243