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13030443455 = 52606088691
BaseRepresentation
bin11000010001010110…
…01100100110111111
31020122010002010000212
430020223030212333
5203141243142310
65552555343035
7640622641031
oct141053144677
936563063025
1013030443455
115587389037
122637a51a7b
1312c87a0793
148b8811c51
15513e67205
hex308acc9bf

13030443455 has 4 divisors (see below), whose sum is σ = 15636532152. Its totient is φ = 10424354760.

The previous prime is 13030443431. The next prime is 13030443457. The reversal of 13030443455 is 55434403031.

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

It is not a de Polignac number, because 13030443455 - 214 = 13030427071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030443457) 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, 1303044341 + ... + 1303044350.

It is an arithmetic number, because the mean of its divisors is an integer number (3909133038).

Almost surely, 213030443455 is an apocalyptic number.

13030443455 is a deficient number, since it is larger than the sum of its proper divisors (2606088697).

13030443455 is an equidigital number, since it uses as much as digits as its factorization.

13030443455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606088696.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 13030443455 its reverse (55434403031), we get a palindrome (68464846486).

The spelling of 13030443455 in words is "thirteen billion, thirty million, four hundred forty-three thousand, four hundred fifty-five".

Divisors: 1 5 2606088691 13030443455