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8475993 = 324212237
BaseRepresentation
bin100000010101…
…010101011001
3120221121212200
4200111111121
54132212433
6501400413
7132021231
oct40252531
916847780
108475993
11486a159
122a09109
1319a9ca6
1411a8cc1
15b26613
hex815559

8475993 has 12 divisors (see below), whose sum is σ = 12277668. Its totient is φ = 5634720.

The previous prime is 8475991. The next prime is 8476001. The reversal of 8475993 is 3995748.

It can be written as a sum of positive squares in 2 ways, for example, as 2585664 + 5890329 = 1608^2 + 2427^2 .

It is not a de Polignac number, because 8475993 - 21 = 8475991 is a prime.

8475993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8475991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2671 + ... + 4907.

It is an arithmetic number, because the mean of its divisors is an integer number (1023139).

Almost surely, 28475993 is an apocalyptic number.

It is an amenable number.

8475993 is a deficient number, since it is larger than the sum of its proper divisors (3801675).

8475993 is a wasteful number, since it uses less digits than its factorization.

8475993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664 (or 2661 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 8475993 is about 2911.3558696937. The cubic root of 8475993 is about 203.8904400170.

The spelling of 8475993 in words is "eight million, four hundred seventy-five thousand, nine hundred ninety-three".

Divisors: 1 3 9 421 1263 2237 3789 6711 20133 941777 2825331 8475993