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6940073 = 71952181
BaseRepresentation
bin11010011110010110101001
3111001120222202
4122132112221
53234040243
6404425545
7112663310
oct32362651
914046882
106940073
113a101a8
1223a82b5
13158cb6a
14cc9277
159214b8
hex69e5a9

6940073 has 8 divisors (see below), whose sum is σ = 8349120. Its totient is φ = 5635440.

The previous prime is 6940069. The next prime is 6940091. The reversal of 6940073 is 3700496.

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

It is a cyclic number.

It is not a de Polignac number, because 6940073 - 22 = 6940069 is a prime.

It is a super-2 number, since 2×69400732 = 96329226490658, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6940033) 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 7 ways as a sum of consecutive naturals, for example, 25958 + ... + 26223.

It is an arithmetic number, because the mean of its divisors is an integer number (1043640).

Almost surely, 26940073 is an apocalyptic number.

It is an amenable number.

6940073 is a deficient number, since it is larger than the sum of its proper divisors (1409047).

6940073 is a wasteful number, since it uses less digits than its factorization.

6940073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52207.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 6940073 is about 2634.4018296380. The cubic root of 6940073 is about 190.7456662516.

The spelling of 6940073 in words is "six million, nine hundred forty thousand, seventy-three".

Divisors: 1 7 19 133 52181 365267 991439 6940073