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6690741 = 3171271033
BaseRepresentation
bin11001100001011110110101
3110120220222020
4121201132311
53203100431
6355223353
7110604351
oct31413665
913526866
106690741
11385a942
1222a7b59
131503525
14c62461
158c2696
hex6617b5

6690741 has 16 divisors (see below), whose sum is σ = 9529344. Its totient is φ = 4161024.

The previous prime is 6690737. The next prime is 6690743. The reversal of 6690741 is 1470966.

It is a happy number.

It is not a de Polignac number, because 6690741 - 22 = 6690737 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6690743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5961 + ... + 6993.

It is an arithmetic number, because the mean of its divisors is an integer number (595584).

Almost surely, 26690741 is an apocalyptic number.

It is an amenable number.

6690741 is a deficient number, since it is larger than the sum of its proper divisors (2838603).

6690741 is a wasteful number, since it uses less digits than its factorization.

6690741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 6690741 is about 2586.6466708849. The cubic root of 6690741 is about 188.4334817726.

The spelling of 6690741 in words is "six million, six hundred ninety thousand, seven hundred forty-one".

Divisors: 1 3 17 51 127 381 1033 2159 3099 6477 17561 52683 131191 393573 2230247 6690741