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6698087413 = 13748891149
BaseRepresentation
bin1100011110011110…
…01011001111110101
3122021210122002120121
412033033023033311
5102204202244123
63024351131541
7324661542433
oct61717131765
918253562517
106698087413
112927994236
12136b213bb1
138298b8744
14477809d53
1529307d75d
hex18f3cb3f5

6698087413 has 4 divisors (see below), whose sum is σ = 6746978700. Its totient is φ = 6649196128.

The previous prime is 6698087377. The next prime is 6698087437. The reversal of 6698087413 is 3147808966.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5541611364 + 1156476049 = 74442^2 + 34007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6698087413 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 (6698087113) 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, 24445438 + ... + 24445711.

It is an arithmetic number, because the mean of its divisors is an integer number (1686744675).

Almost surely, 26698087413 is an apocalyptic number.

It is an amenable number.

6698087413 is a deficient number, since it is larger than the sum of its proper divisors (48891287).

6698087413 is a wasteful number, since it uses less digits than its factorization.

6698087413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48891286.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 6698087413 is about 81841.8439002934. The cubic root of 6698087413 is about 1885.0242300708.

The spelling of 6698087413 in words is "six billion, six hundred ninety-eight million, eighty-seven thousand, four hundred thirteen".

Divisors: 1 137 48891149 6698087413