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8049813 = 313072053
BaseRepresentation
bin11110101101010010010101
3120010222021020
4132231102111
54030043223
6444311353
7125264562
oct36552225
916128236
108049813
1145a8a42
122842559
13188b005
1410d7869
15a901e3
hex7ad495

8049813 has 8 divisors (see below), whose sum is σ = 10746528. Its totient is φ = 5359824.

The previous prime is 8049803. The next prime is 8049829. The reversal of 8049813 is 3189408.

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

It is not a de Polignac number, because 8049813 - 214 = 8033429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8049803) 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, 2895 + ... + 4947.

It is an arithmetic number, because the mean of its divisors is an integer number (1343316).

Almost surely, 28049813 is an apocalyptic number.

It is an amenable number.

8049813 is a deficient number, since it is larger than the sum of its proper divisors (2696715).

8049813 is a wasteful number, since it uses less digits than its factorization.

8049813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 8049813 is about 2837.2192372110. The cubic root of 8049813 is about 200.4142497268.

The spelling of 8049813 in words is "eight million, forty-nine thousand, eight hundred thirteen".

Divisors: 1 3 1307 2053 3921 6159 2683271 8049813