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3431289 = 31143763
BaseRepresentation
bin1101000101101101111001
320110022211210
431011231321
51334300124
6201313333
741110521
oct15055571
96408753
103431289
111a33a84
121195849
13931a64
14654681
1547ba29
hex345b79

3431289 has 4 divisors (see below), whose sum is σ = 4575056. Its totient is φ = 2287524.

The previous prime is 3431287. The next prime is 3431317. The reversal of 3431289 is 9821343.

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 not a de Polignac number, because 3431289 - 21 = 3431287 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3431287) 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, 571879 + ... + 571884.

It is an arithmetic number, because the mean of its divisors is an integer number (1143764).

Almost surely, 23431289 is an apocalyptic number.

It is an amenable number.

3431289 is a deficient number, since it is larger than the sum of its proper divisors (1143767).

3431289 is a wasteful number, since it uses less digits than its factorization.

3431289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143766.

The product of its digits is 5184, while the sum is 30.

The square root of 3431289 is about 1852.3738823466. The cubic root of 3431289 is about 150.8293175438.

The spelling of 3431289 in words is "three million, four hundred thirty-one thousand, two hundred eighty-nine".

Divisors: 1 3 1143763 3431289