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6987485 = 51397497
BaseRepresentation
bin11010101001111011011101
3111011000000202
4122221323131
53242044420
6405433245
7113251451
oct32517335
914130022
106987485
113a4288a
12240b825
1315a860b
14cdc661
15930575
hex6a9edd

6987485 has 4 divisors (see below), whose sum is σ = 8384988. Its totient is φ = 5589984.

The previous prime is 6987473. The next prime is 6987499. The reversal of 6987485 is 5847896.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3678724 + 3308761 = 1918^2 + 1819^2 .

It is a cyclic number.

It is not a de Polignac number, because 6987485 - 214 = 6971101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698744 + ... + 698753.

It is an arithmetic number, because the mean of its divisors is an integer number (2096247).

Almost surely, 26987485 is an apocalyptic number.

It is an amenable number.

6987485 is a deficient number, since it is larger than the sum of its proper divisors (1397503).

6987485 is a wasteful number, since it uses less digits than its factorization.

6987485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397502.

The product of its digits is 483840, while the sum is 47.

The square root of 6987485 is about 2643.3851403078. The cubic root of 6987485 is about 191.1790486809.

The spelling of 6987485 in words is "six million, nine hundred eighty-seven thousand, four hundred eighty-five".

Divisors: 1 5 1397497 6987485