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4286989 = 71932233
BaseRepresentation
bin10000010110101000001101
322001210122101
4100112220031
52044140424
6231515101
751303340
oct20265015
98053571
104286989
112468973
121528a91
13b713a5
147d8457
1559a344
hex416a0d

4286989 has 8 divisors (see below), whose sum is σ = 5157440. Its totient is φ = 3481056.

The previous prime is 4286987. The next prime is 4287037. The reversal of 4286989 is 9896824.

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

It is a cyclic number.

It is not a de Polignac number, because 4286989 - 21 = 4286987 is a prime.

It is a super-2 number, since 2×42869892 = 36756549372242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4286981) 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, 15984 + ... + 16249.

It is an arithmetic number, because the mean of its divisors is an integer number (644680).

Almost surely, 24286989 is an apocalyptic number.

It is an amenable number.

4286989 is a deficient number, since it is larger than the sum of its proper divisors (870451).

4286989 is a wasteful number, since it uses less digits than its factorization.

4286989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32259.

The product of its digits is 248832, while the sum is 46.

The square root of 4286989 is about 2070.5045278869. The cubic root of 4286989 is about 162.4491549013.

The spelling of 4286989 in words is "four million, two hundred eighty-six thousand, nine hundred eighty-nine".

Divisors: 1 7 19 133 32233 225631 612427 4286989