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13242402223 = 88951148873
BaseRepresentation
bin11000101010100111…
…10000010110101111
31021011212220201210121
430111103300112233
5204110023332343
610030010345411
7646105363441
oct142523602657
937155821717
1013242402223
115685a99876
122696a2b267
13133068407b
148d8a28491
15527884aed
hex3154f05af

13242402223 has 4 divisors (see below), whose sum is σ = 13242640048. Its totient is φ = 13242164400.

The previous prime is 13242402169. The next prime is 13242402307. The reversal of 13242402223 is 32220424231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32220424231 = 41687772913.

It is a cyclic number.

It is not a de Polignac number, because 13242402223 - 217 = 13242271151 is a prime.

It is a super-2 number, since 2×132424022232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13242402023) 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, 14515 + ... + 163387.

It is an arithmetic number, because the mean of its divisors is an integer number (3310660012).

Almost surely, 213242402223 is an apocalyptic number.

13242402223 is a deficient number, since it is larger than the sum of its proper divisors (237825).

13242402223 is an equidigital number, since it uses as much as digits as its factorization.

13242402223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237824.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 13242402223 its reverse (32220424231), we get a palindrome (45462826454).

The spelling of 13242402223 in words is "thirteen billion, two hundred forty-two million, four hundred two thousand, two hundred twenty-three".

Divisors: 1 88951 148873 13242402223