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6644141 = 74871949
BaseRepresentation
bin11001010110000110101101
3110111120001022
4121112012231
53200103031
6354223525
7110321450
oct31260655
913446038
106644141
113828929
122284ba5
1314b825a
14c4d497
158b397b
hex6561ad

6644141 has 8 divisors (see below), whose sum is σ = 7612800. Its totient is φ = 5680368.

The previous prime is 6644123. The next prime is 6644147. The reversal of 6644141 is 1414466.

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

It is not a de Polignac number, because 6644141 - 214 = 6627757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6644141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6644147) 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, 2435 + ... + 4383.

It is an arithmetic number, because the mean of its divisors is an integer number (951600).

Almost surely, 26644141 is an apocalyptic number.

It is an amenable number.

6644141 is a deficient number, since it is larger than the sum of its proper divisors (968659).

6644141 is a wasteful number, since it uses less digits than its factorization.

6644141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443.

The product of its digits is 2304, while the sum is 26.

The square root of 6644141 is about 2577.6231299397. The cubic root of 6644141 is about 187.9949919445.

The spelling of 6644141 in words is "six million, six hundred forty-four thousand, one hundred forty-one".

Divisors: 1 7 487 1949 3409 13643 949163 6644141