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6245993 = 13480461
BaseRepresentation
bin10111110100111001101001
3102202022220002
4113310321221
53044332433
6341512345
7104042615
oct27647151
912668802
106245993
113586786
1221126b5
1313a8c70
14b88345
158359e8
hex5f4e69

6245993 has 4 divisors (see below), whose sum is σ = 6726468. Its totient is φ = 5765520.

The previous prime is 6245989. The next prime is 6246017. The reversal of 6245993 is 3995426.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3995426 = 21997713.

It can be written as a sum of positive squares in 2 ways, for example, as 3396649 + 2849344 = 1843^2 + 1688^2 .

It is a cyclic number.

It is not a de Polignac number, because 6245993 - 22 = 6245989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6245923) 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, 240218 + ... + 240243.

It is an arithmetic number, because the mean of its divisors is an integer number (1681617).

Almost surely, 26245993 is an apocalyptic number.

It is an amenable number.

6245993 is a deficient number, since it is larger than the sum of its proper divisors (480475).

6245993 is a wasteful number, since it uses less digits than its factorization.

6245993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480474.

The product of its digits is 58320, while the sum is 38.

The square root of 6245993 is about 2499.1984715104. The cubic root of 6245993 is about 184.1622014119.

The spelling of 6245993 in words is "six million, two hundred forty-five thousand, nine hundred ninety-three".

Divisors: 1 13 480461 6245993