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6725790613 = 38317560811
BaseRepresentation
bin1100100001110001…
…10110101110010101
3122100201202120020001
412100320312232111
5102233300244423
63031221011301
7325446163663
oct62070665625
918321676201
106725790613
112941596043
121378553b31
13832568179
1447b37bc33
15295701cad
hex190e36b95

6725790613 has 4 divisors (see below), whose sum is σ = 6743351808. Its totient is φ = 6708229420.

The previous prime is 6725790611. The next prime is 6725790629. The reversal of 6725790613 is 3160975276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6725790613 - 21 = 6725790611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6725790611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8780023 + ... + 8780788.

It is an arithmetic number, because the mean of its divisors is an integer number (1685837952).

Almost surely, 26725790613 is an apocalyptic number.

It is an amenable number.

6725790613 is a deficient number, since it is larger than the sum of its proper divisors (17561195).

6725790613 is a wasteful number, since it uses less digits than its factorization.

6725790613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17561194.

The product of its (nonzero) digits is 476280, while the sum is 46.

The square root of 6725790613 is about 82010.9176451526. The cubic root of 6725790613 is about 1887.6194670695.

The spelling of 6725790613 in words is "six billion, seven hundred twenty-five million, seven hundred ninety thousand, six hundred thirteen".

Divisors: 1 383 17560811 6725790613