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6680899 = 11359123
BaseRepresentation
bin11001011111000101000011
3110120102110201
4121133011003
53202242044
6355110031
7110533561
oct31370503
913512421
106680899
113853505
1222a2317
1314cbbc4
14c5ca31
158be7d4
hex65f143

6680899 has 4 divisors (see below), whose sum is σ = 6740136. Its totient is φ = 6621664.

The previous prime is 6680873. The next prime is 6680923. The reversal of 6680899 is 9980866.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6680899 - 211 = 6678851 is a prime.

It is a super-2 number, since 2×66808992 = 89268822896402, which contains 22 as substring.

6680899 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6680699) 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, 29449 + ... + 29674.

It is an arithmetic number, because the mean of its divisors is an integer number (1685034).

Almost surely, 26680899 is an apocalyptic number.

6680899 is a deficient number, since it is larger than the sum of its proper divisors (59237).

6680899 is a wasteful number, since it uses less digits than its factorization.

6680899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59236.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 6680899 is about 2584.7435075845. The cubic root of 6680899 is about 188.3410419657.

The spelling of 6680899 in words is "six million, six hundred eighty thousand, eight hundred ninety-nine".

Divisors: 1 113 59123 6680899