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2789493 = 37132833
BaseRepresentation
bin1010101001000001110101
312020201110120
422221001311
51203230433
6135442153
732465430
oct12510165
95221416
102789493
111635873
12b26359
137688b5
14528817
153a17b3
hex2a9075

2789493 has 8 divisors (see below), whose sum is σ = 4250688. Its totient is φ = 1593984.

The previous prime is 2789491. The next prime is 2789503. The reversal of 2789493 is 3949872.

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

It is not a de Polignac number, because 2789493 - 21 = 2789491 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2789491) 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, 66396 + ... + 66437.

It is an arithmetic number, because the mean of its divisors is an integer number (531336).

22789493 is an apocalyptic number.

It is an amenable number.

2789493 is a deficient number, since it is larger than the sum of its proper divisors (1461195).

2789493 is a wasteful number, since it uses less digits than its factorization.

2789493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132843.

The product of its digits is 108864, while the sum is 42.

The square root of 2789493 is about 1670.1775354734. The cubic root of 2789493 is about 140.7694537353.

The spelling of 2789493 in words is "two million, seven hundred eighty-nine thousand, four hundred ninety-three".

Divisors: 1 3 7 21 132833 398499 929831 2789493