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6289742 = 23144871
BaseRepresentation
bin10111111111100101001110
3102211112220102
4113333211032
53102232432
6342451102
7104314304
oct27774516
912745812
106289742
113606638
122133a92
1313c2b54
14b9a274
15843962
hex5ff94e

6289742 has 4 divisors (see below), whose sum is σ = 9434616. Its totient is φ = 3144870.

The previous prime is 6289733. The next prime is 6289757. The reversal of 6289742 is 2479826.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2479826 = 21239913.

It is a d-powerful number, because it can be written as 62 + 25 + 83 + 9 + 78 + 43 + 219 .

It is a junction number, because it is equal to n+sod(n) for n = 6289696 and 6289705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572434 + ... + 1572437.

It is an arithmetic number, because the mean of its divisors is an integer number (2358654).

Almost surely, 26289742 is an apocalyptic number.

6289742 is a deficient number, since it is larger than the sum of its proper divisors (3144874).

6289742 is a wasteful number, since it uses less digits than its factorization.

6289742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144873.

The product of its digits is 48384, while the sum is 38.

The square root of 6289742 is about 2507.9358046011. The cubic root of 6289742 is about 184.5911790469.

The spelling of 6289742 in words is "six million, two hundred eighty-nine thousand, seven hundred forty-two".

Divisors: 1 2 3144871 6289742