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4288089 = 313432557
BaseRepresentation
bin10000010110111001011001
322001212011010
4100112321121
52044204324
6231524133
751306501
oct20267131
98055133
104288089
112469783
121529649
13b71a40
147d8a01
1559a829
hex416e59

4288089 has 16 divisors (see below), whose sum is σ = 6302912. Its totient is φ = 2576448.

The previous prime is 4288087. The next prime is 4288103. The reversal of 4288089 is 9808824.

It is a happy number.

It is not a de Polignac number, because 4288089 - 21 = 4288087 is a prime.

It is a super-3 number, since 3×42880893 (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4288087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399 + ... + 2955.

It is an arithmetic number, because the mean of its divisors is an integer number (393932).

Almost surely, 24288089 is an apocalyptic number.

It is an amenable number.

4288089 is a deficient number, since it is larger than the sum of its proper divisors (2014823).

4288089 is a wasteful number, since it uses less digits than its factorization.

4288089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2616.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 4288089 is about 2070.7701465880. The cubic root of 4288089 is about 162.4630480081.

The spelling of 4288089 in words is "four million, two hundred eighty-eight thousand, eighty-nine".

Divisors: 1 3 13 39 43 129 559 1677 2557 7671 33241 99723 109951 329853 1429363 4288089