Search a number
-
+
6675891 = 313116987
BaseRepresentation
bin11001011101110110110011
3110120011121020
4121131312303
53202112031
6355030523
7110513145
oct31356663
913504536
106675891
11384a772
12229b443
1314c9841
14c5ac95
158bd096
hex65ddb3

6675891 has 8 divisors (see below), whose sum is σ = 8969664. Its totient is φ = 4416360.

The previous prime is 6675869. The next prime is 6675899. The reversal of 6675891 is 1985766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6675891 - 27 = 6675763 is a prime.

6675891 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6675899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8101 + ... + 8886.

It is an arithmetic number, because the mean of its divisors is an integer number (1121208).

Almost surely, 26675891 is an apocalyptic number.

6675891 is a deficient number, since it is larger than the sum of its proper divisors (2293773).

6675891 is a wasteful number, since it uses less digits than its factorization.

6675891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17121.

The product of its digits is 90720, while the sum is 42.

The square root of 6675891 is about 2583.7745644696. The cubic root of 6675891 is about 188.2939700715.

It can be divided in two parts, 667589 and 1, that added together give a triangular number (667590 = T1155).

The spelling of 6675891 in words is "six million, six hundred seventy-five thousand, eight hundred ninety-one".

Divisors: 1 3 131 393 16987 50961 2225297 6675891