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2689241 = 19141539
BaseRepresentation
bin1010010000100011011001
312001121221112
422100203121
51142023431
6133350105
731600232
oct12204331
95047845
102689241
111577515
12a98335
13732089
14500089
15381c2b
hex2908d9

2689241 has 4 divisors (see below), whose sum is σ = 2830800. Its totient is φ = 2547684.

The previous prime is 2689223. The next prime is 2689243. The reversal of 2689241 is 1429862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2689241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2689198 and 2689207.

It is not an unprimeable number, because it can be changed into a prime (2689243) 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, 70751 + ... + 70788.

It is an arithmetic number, because the mean of its divisors is an integer number (707700).

22689241 is an apocalyptic number.

It is an amenable number.

2689241 is a deficient number, since it is larger than the sum of its proper divisors (141559).

2689241 is a wasteful number, since it uses less digits than its factorization.

2689241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141558.

The product of its digits is 6912, while the sum is 32.

The square root of 2689241 is about 1639.8905451279. The cubic root of 2689241 is about 139.0624600682.

The spelling of 2689241 in words is "two million, six hundred eighty-nine thousand, two hundred forty-one".

Divisors: 1 19 141539 2689241