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8303393 = 72169457
BaseRepresentation
bin11111101011001100100001
3120121212010002
4133223030201
54111202033
6453545345
7130402100
oct37531441
916555102
108303393
11476150a
122945255
131949567
141162037
15ae03e8
hex7eb321

8303393 has 6 divisors (see below), whose sum is σ = 9659106. Its totient is φ = 7117152.

The previous prime is 8303341. The next prime is 8303411. The reversal of 8303393 is 3933038.

8303393 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7997584 + 305809 = 2828^2 + 553^2 .

It is not a de Polignac number, because 8303393 - 218 = 8041249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8303303) 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 5 ways as a sum of consecutive naturals, for example, 84680 + ... + 84777.

It is an arithmetic number, because the mean of its divisors is an integer number (1609851).

Almost surely, 28303393 is an apocalyptic number.

It is an amenable number.

8303393 is a deficient number, since it is larger than the sum of its proper divisors (1355713).

8303393 is a wasteful number, since it uses less digits than its factorization.

8303393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169471 (or 169464 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 8303393 is about 2881.5608617553. The cubic root of 8303393 is about 202.4969709449.

The spelling of 8303393 in words is "eight million, three hundred three thousand, three hundred ninety-three".

Divisors: 1 7 49 169457 1186199 8303393