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6700013 = 7391781
BaseRepresentation
bin11001100011101111101101
3110121101200122
4121203233231
53203400023
6355334325
7110643365
oct31435755
913541618
106700013
113866901
1222b13a5
131507808
14c659a5
158c52c8
hex663bed

6700013 has 4 divisors (see below), whose sum is σ = 6791868. Its totient is φ = 6608160.

The previous prime is 6700007. The next prime is 6700033. The reversal of 6700013 is 3100076.

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 2866249 + 3833764 = 1693^2 + 1958^2 .

It is a cyclic number.

It is not a de Polignac number, because 6700013 - 26 = 6699949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6699964 and 6700000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6700033) 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, 45818 + ... + 45963.

It is an arithmetic number, because the mean of its divisors is an integer number (1697967).

Almost surely, 26700013 is an apocalyptic number.

It is an amenable number.

6700013 is a deficient number, since it is larger than the sum of its proper divisors (91855).

6700013 is an equidigital number, since it uses as much as digits as its factorization.

6700013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91854.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 6700013 is about 2588.4383322768. The cubic root of 6700013 is about 188.5204850306.

Adding to 6700013 its reverse (3100076), we get a palindrome (9800089).

The spelling of 6700013 in words is "six million, seven hundred thousand, thirteen".

Divisors: 1 73 91781 6700013