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13430263 = 721124917
BaseRepresentation
bin110011001110…
…110111110111
3221021022212011
4303032313313
511414232023
61155505051
7222104200
oct63166767
927238764
1013430263
1176433a0
1245b8187
132a23002
141ad85a7
1512a450d
hexccedf7

13430263 has 12 divisors (see below), whose sum is σ = 17043912. Its totient is φ = 10464720.

The previous prime is 13430243. The next prime is 13430267. The reversal of 13430263 is 36203431.

It is not a de Polignac number, because 13430263 - 25 = 13430231 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 (13430267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11920 + ... + 12997.

It is an arithmetic number, because the mean of its divisors is an integer number (1420326).

Almost surely, 213430263 is an apocalyptic number.

13430263 is a deficient number, since it is larger than the sum of its proper divisors (3613649).

13430263 is a wasteful number, since it uses less digits than its factorization.

13430263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24942 (or 24935 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 13430263 is about 3664.7323231036. The cubic root of 13430263 is about 237.6994476042.

Adding to 13430263 its reverse (36203431), we get a palindrome (49633694).

The spelling of 13430263 in words is "thirteen million, four hundred thirty thousand, two hundred sixty-three".

Divisors: 1 7 11 49 77 539 24917 174419 274087 1220933 1918609 13430263