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13242999 = 371157329
BaseRepresentation
bin110010100001…
…001001110111
3220220210222110
4302201021313
511342233444
61151502103
7220364220
oct62411167
926823873
1013242999
117525730
124527933
1329889c3
141a8a247
151268cb9
hexca1277

13242999 has 16 divisors (see below), whose sum is σ = 22014720. Its totient is φ = 6879360.

The previous prime is 13242997. The next prime is 13243001. The reversal of 13242999 is 99924231.

13242999 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13242997) and next prime (13243001).

It is not a de Polignac number, because 13242999 - 21 = 13242997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13242997) 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, 28434 + ... + 28895.

It is an arithmetic number, because the mean of its divisors is an integer number (1375920).

Almost surely, 213242999 is an apocalyptic number.

13242999 is a deficient number, since it is larger than the sum of its proper divisors (8771721).

13242999 is a wasteful number, since it uses less digits than its factorization.

13242999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57350.

The product of its digits is 34992, while the sum is 39.

The square root of 13242999 is about 3639.0931562685. The cubic root of 13242999 is about 236.5894903640.

It can be divided in two parts, 13242 and 999, that added together give a palindrome (14241).

The spelling of 13242999 in words is "thirteen million, two hundred forty-two thousand, nine hundred ninety-nine".

Divisors: 1 3 7 11 21 33 77 231 57329 171987 401303 630619 1203909 1891857 4414333 13242999