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2813489 = 72771451
BaseRepresentation
bin1010101110111000110001
312021221101022
422232320301
51210012424
6140145225
732625410
oct12567061
95257338
102813489
1116518a8
12b38215
137767b3
14533477
153a895e
hex2aee31

2813489 has 8 divisors (see below), whose sum is σ = 3229248. Its totient is φ = 2401200.

The previous prime is 2813479. The next prime is 2813497. The reversal of 2813489 is 9843182.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2813489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2813479) 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, 1214 + ... + 2664.

It is an arithmetic number, because the mean of its divisors is an integer number (403656).

22813489 is an apocalyptic number.

It is an amenable number.

2813489 is a deficient number, since it is larger than the sum of its proper divisors (415759).

2813489 is a wasteful number, since it uses less digits than its factorization.

2813489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735.

The product of its digits is 13824, while the sum is 35.

The square root of 2813489 is about 1677.3458200383. The cubic root of 2813489 is about 141.1719478977.

The spelling of 2813489 in words is "two million, eight hundred thirteen thousand, four hundred eighty-nine".

Divisors: 1 7 277 1451 1939 10157 401927 2813489