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13013223203 = 22358355261
BaseRepresentation
bin11000001111010011…
…00000011100100011
31020120220200020021202
430013221200130203
5203122341120303
65551142311415
7640323400151
oct140751403443
936526606252
1013013223203
115578697222
12263212856b
1312c5051696
148b640c3d1
155126b4c88
hex307a60723

13013223203 has 4 divisors (see below), whose sum is σ = 13071578688. Its totient is φ = 12954867720.

The previous prime is 13013223191. The next prime is 13013223259. The reversal of 13013223203 is 30232231031.

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 13013223203 - 28 = 13013222947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13013223283) 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, 29177408 + ... + 29177853.

It is an arithmetic number, because the mean of its divisors is an integer number (3267894672).

Almost surely, 213013223203 is an apocalyptic number.

13013223203 is a deficient number, since it is larger than the sum of its proper divisors (58355485).

13013223203 is an equidigital number, since it uses as much as digits as its factorization.

13013223203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58355484.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13013223203 its reverse (30232231031), we get a palindrome (43245454234).

The spelling of 13013223203 in words is "thirteen billion, thirteen million, two hundred twenty-three thousand, two hundred three".

Divisors: 1 223 58355261 13013223203