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7242985 = 54992903
BaseRepresentation
bin11011101000010011101001
3111121222111201
4123220103221
53323233420
6415124201
7115364401
oct33502351
914558451
107242985
1140a7842
122513661
1316679b9
14d67801
1598110a
hex6e84e9

7242985 has 8 divisors (see below), whose sum is σ = 8712000. Its totient is φ = 5780784.

The previous prime is 7242979. The next prime is 7243001. The reversal of 7242985 is 5892427.

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 7242985 - 217 = 7111913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044 + ... + 3946.

It is an arithmetic number, because the mean of its divisors is an integer number (1089000).

Almost surely, 27242985 is an apocalyptic number.

It is an amenable number.

7242985 is a deficient number, since it is larger than the sum of its proper divisors (1469015).

7242985 is a wasteful number, since it uses less digits than its factorization.

7242985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407.

The product of its digits is 40320, while the sum is 37.

The square root of 7242985 is about 2691.2794355102. The cubic root of 7242985 is about 193.4813884398.

The spelling of 7242985 in words is "seven million, two hundred forty-two thousand, nine hundred eighty-five".

Divisors: 1 5 499 2495 2903 14515 1448597 7242985