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13243441423 = 231395877057
BaseRepresentation
bin11000101010101111…
…01110000100001111
31021011221212112022111
430111113232010033
5204110310111143
610030044524451
7646120252252
oct142527560417
937157775274
1013243441423
115686639613
122697250727
131330959094
148d8c19099
155279dc99d
hex3155ee10f

13243441423 has 16 divisors (see below), whose sum is σ = 13944349440. Its totient is φ = 12553301376.

The previous prime is 13243441369. The next prime is 13243441451. The reversal of 13243441423 is 32414434231.

It is not a de Polignac number, because 13243441423 - 217 = 13243310351 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 (13243441493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1873111 + ... + 1880167.

It is an arithmetic number, because the mean of its divisors is an integer number (871521840).

Almost surely, 213243441423 is an apocalyptic number.

13243441423 is a deficient number, since it is larger than the sum of its proper divisors (700908017).

13243441423 is a wasteful number, since it uses less digits than its factorization.

13243441423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7806.

The product of its digits is 27648, while the sum is 31.

Adding to 13243441423 its reverse (32414434231), we get a palindrome (45657875654).

The spelling of 13243441423 in words is "thirteen billion, two hundred forty-three million, four hundred forty-one thousand, four hundred twenty-three".

Divisors: 1 23 139 587 3197 7057 13501 81593 162311 980923 1876639 4142459 22561229 95276557 575801801 13243441423