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2488979 = 4752957
BaseRepresentation
bin1001011111101010010011
311200110020102
421133222103
51114121404
6125203015
730104333
oct11375223
94613212
102488979
111450009
12a0046b
13691b8c
1448b0c3
1534271e
hex25fa93

2488979 has 4 divisors (see below), whose sum is σ = 2541984. Its totient is φ = 2435976.

The previous prime is 2488973. The next prime is 2489017. The reversal of 2488979 is 9798842.

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

It is a cyclic number.

It is not a de Polignac number, because 2488979 - 24 = 2488963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 52957 = 2488979 / (2 + 4 + 8 + 8 + 9 + 7 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2488973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26432 + ... + 26525.

It is an arithmetic number, because the mean of its divisors is an integer number (635496).

22488979 is an apocalyptic number.

2488979 is a deficient number, since it is larger than the sum of its proper divisors (53005).

2488979 is an equidigital number, since it uses as much as digits as its factorization.

2488979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53004.

The product of its digits is 290304, while the sum is 47.

The square root of 2488979 is about 1577.6498344056. The cubic root of 2488979 is about 135.5211497330.

The spelling of 2488979 in words is "two million, four hundred eighty-eight thousand, nine hundred seventy-nine".

Divisors: 1 47 52957 2488979