Search a number
-
+
1285041 = 31792393
BaseRepresentation
bin100111001101110110001
32102021202010
410321232301
5312110131
643313133
713631322
oct4715661
92367663
101285041
117a851a
1251b7a9
1335cba4
14256449
151a5b46
hex139bb1

1285041 has 8 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 851552.

The previous prime is 1285021. The next prime is 1285049. The reversal of 1285041 is 1405821.

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

It is a cyclic number.

It is not a de Polignac number, because 1285041 - 26 = 1284977 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1284999 and 1285017.

It is not an unprimeable number, because it can be changed into a prime (1285049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 660 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (215460).

21285041 is an apocalyptic number.

It is an amenable number.

1285041 is a deficient number, since it is larger than the sum of its proper divisors (438639).

1285041 is a wasteful number, since it uses less digits than its factorization.

1285041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1285041 is about 1133.5964890560. The cubic root of 1285041 is about 108.7190531576.

The spelling of 1285041 in words is "one million, two hundred eighty-five thousand, forty-one".

Divisors: 1 3 179 537 2393 7179 428347 1285041