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13142421231 = 329151062313
BaseRepresentation
bin11000011110101100…
…10110111011101111
31020220220210011122220
430033112112323233
5203403424434411
610012035410423
7643452510612
oct141726267357
936826704586
1013142421231
115634610655
122669453a13
131315a49114
148c9640179
1551dbd5b06
hex30f596eef

13142421231 has 8 divisors (see below), whose sum is σ = 18127477680. Its totient is φ = 8459489472.

The previous prime is 13142421209. The next prime is 13142421241. The reversal of 13142421231 is 13212424131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13142421231 - 25 = 13142421199 is a prime.

It is a super-2 number, since 2×131424212312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13142421241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75531070 + ... + 75531243.

It is an arithmetic number, because the mean of its divisors is an integer number (2265934710).

Almost surely, 213142421231 is an apocalyptic number.

13142421231 is a deficient number, since it is larger than the sum of its proper divisors (4985056449).

13142421231 is a wasteful number, since it uses less digits than its factorization.

13142421231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151062345.

The product of its digits is 1152, while the sum is 24.

Adding to 13142421231 its reverse (13212424131), we get a palindrome (26354845362).

The spelling of 13142421231 in words is "thirteen billion, one hundred forty-two million, four hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 3 29 87 151062313 453186939 4380807077 13142421231