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4289161 = 6136997
BaseRepresentation
bin10000010111001010001001
322001220121211
4100113022021
52044223121
6231533121
751312562
oct20271211
98056554
104289161
11246a568
12152a1a1
13b72386
147d9169
1559ace1
hex417289

4289161 has 4 divisors (see below), whose sum is σ = 4296772. Its totient is φ = 4281552.

The previous prime is 4289149. The next prime is 4289213. The reversal of 4289161 is 1619824.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 447561 + 3841600 = 669^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 4289161 - 221 = 2192009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4289101) 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, 2886 + ... + 4111.

It is an arithmetic number, because the mean of its divisors is an integer number (1074193).

Almost surely, 24289161 is an apocalyptic number.

It is an amenable number.

4289161 is a deficient number, since it is larger than the sum of its proper divisors (7611).

4289161 is an equidigital number, since it uses as much as digits as its factorization.

4289161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7610.

The product of its digits is 3456, while the sum is 31.

The square root of 4289161 is about 2071.0289713087. The cubic root of 4289161 is about 162.4765851865.

The spelling of 4289161 in words is "four million, two hundred eighty-nine thousand, one hundred sixty-one".

Divisors: 1 613 6997 4289161