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13243254234 = 237315315577
BaseRepresentation
bin11000101010101110…
…00000010111011010
31021011221112000112120
430111113000113122
5204110233113414
610030040522110
7646115542440
oct142527002732
937157460476
1013243254234
115686520a11
122697180336
1313308c1b12
148d8baab90
155279a22a9
hex3155c05da

13243254234 has 16 divisors (see below), whose sum is σ = 30270295488. Its totient is φ = 3783786912.

The previous prime is 13243254209. The next prime is 13243254247. The reversal of 13243254234 is 43245234231.

It is a junction number, because it is equal to n+sod(n) for n = 13243254195 and 13243254204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157657747 + ... + 157657830.

It is an arithmetic number, because the mean of its divisors is an integer number (1891893468).

Almost surely, 213243254234 is an apocalyptic number.

13243254234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13243254234 is an abundant number, since it is smaller than the sum of its proper divisors (17027041254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13243254234 is a wasteful number, since it uses less digits than its factorization.

13243254234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315315589.

The product of its digits is 69120, while the sum is 33.

Adding to 13243254234 its reverse (43245234231), we get a palindrome (56488488465).

The spelling of 13243254234 in words is "thirteen billion, two hundred forty-three million, two hundred fifty-four thousand, two hundred thirty-four".

Divisors: 1 2 3 6 7 14 21 42 315315577 630631154 945946731 1891893462 2207209039 4414418078 6621627117 13243254234