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13001030243 = 19367362851
BaseRepresentation
bin11000001101110101…
…11111101001100011
31020120001201202200122
430012322333221203
5203111230431433
65550025110455
7640114635155
oct140672775143
936501652618
1013001030243
1155718194a3
12262a02842b
1312c2672906
148b4956ad5
155115a7198
hex306ebfa63

13001030243 has 4 divisors (see below), whose sum is σ = 13068393288. Its totient is φ = 12933667200.

The previous prime is 13001030213. The next prime is 13001030293. The reversal of 13001030243 is 34203010031.

It is a happy number.

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 13001030243 - 222 = 12996835939 is a prime.

It is a super-4 number, since 4×130010302434 (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13001030213) 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, 33681233 + ... + 33681618.

It is an arithmetic number, because the mean of its divisors is an integer number (3267098322).

Almost surely, 213001030243 is an apocalyptic number.

13001030243 is a deficient number, since it is larger than the sum of its proper divisors (67363045).

13001030243 is an equidigital number, since it uses as much as digits as its factorization.

13001030243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67363044.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13001030243 its reverse (34203010031), we get a palindrome (47204040274).

The spelling of 13001030243 in words is "thirteen billion, one million, thirty thousand, two hundred forty-three".

Divisors: 1 193 67362851 13001030243