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6742045131 = 323241405439
BaseRepresentation
bin1100100011101101…
…10111000111001011
3122101212100101020020
412101312313013023
5102301430421011
63033001231523
7326034303153
oct62166670713
918355311206
106742045131
11294a788328
121381a925a3
13835a39823
1447d5ad763
15296d63006
hex191db71cb

6742045131 has 16 divisors (see below), whose sum is σ = 9419182080. Its totient is φ = 4281425280.

The previous prime is 6742045103. The next prime is 6742045151. The reversal of 6742045131 is 1315402476.

It is not a de Polignac number, because 6742045131 - 26 = 6742045067 is a prime.

It is a super-2 number, since 2×67420451312 = 90910345096881614322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6742045092 and 6742045101.

It is not an unprimeable number, because it can be changed into a prime (6742045151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186091 + ... + 219348.

It is an arithmetic number, because the mean of its divisors is an integer number (588698880).

Almost surely, 26742045131 is an apocalyptic number.

6742045131 is a deficient number, since it is larger than the sum of its proper divisors (2677136949).

6742045131 is a wasteful number, since it uses less digits than its factorization.

6742045131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405706.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 6742045131 is about 82109.9575630142. The cubic root of 6742045131 is about 1889.1388750902.

The spelling of 6742045131 in words is "six billion, seven hundred forty-two million, forty-five thousand, one hundred thirty-one".

Divisors: 1 3 23 69 241 723 5543 16629 405439 1216317 9325097 27975291 97710799 293132397 2247348377 6742045131