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2490487 = 8927983
BaseRepresentation
bin1001100000000001110111
311200112022021
421200001313
51114143422
6125214011
730111616
oct11400167
94615267
102490487
11145115a
12a01307
1369277c
1448b87d
15342dc7
hex260077

2490487 has 4 divisors (see below), whose sum is σ = 2518560. Its totient is φ = 2462416.

The previous prime is 2490479. The next prime is 2490493. The reversal of 2490487 is 7840942.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7840942 = 23920471.

It is a cyclic number.

It is not a de Polignac number, because 2490487 - 23 = 2490479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490497) 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, 13903 + ... + 14080.

It is an arithmetic number, because the mean of its divisors is an integer number (629640).

22490487 is an apocalyptic number.

2490487 is a deficient number, since it is larger than the sum of its proper divisors (28073).

2490487 is an equidigital number, since it uses as much as digits as its factorization.

2490487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28072.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2490487 is about 1578.1276881165. The cubic root of 2490487 is about 135.5485136487.

The spelling of 2490487 in words is "two million, four hundred ninety thousand, four hundred eighty-seven".

Divisors: 1 89 27983 2490487