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4284257 = 29241613
BaseRepresentation
bin10000010101111101100001
322001122220012
4100111331201
52044044012
6231454305
751262355
oct20257541
98048805
104284257
11246690a
121527395
13b70083
147d7465
15599622
hex415f61

4284257 has 8 divisors (see below), whose sum is σ = 4457640. Its totient is φ = 4112640.

The previous prime is 4284251. The next prime is 4284263. The reversal of 4284257 is 7524824.

It is an interprime number because it is at equal distance from previous prime (4284251) and next prime (4284263).

It can be written as a sum of positive squares in 4 ways, for example, as 126736 + 4157521 = 356^2 + 2039^2 .

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 4284257 - 218 = 4022113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4284251) 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 7 ways as a sum of consecutive naturals, for example, 6683 + ... + 7295.

It is an arithmetic number, because the mean of its divisors is an integer number (557205).

Almost surely, 24284257 is an apocalyptic number.

It is an amenable number.

4284257 is a deficient number, since it is larger than the sum of its proper divisors (173383).

4284257 is a wasteful number, since it uses less digits than its factorization.

4284257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883.

The product of its digits is 17920, while the sum is 32.

The square root of 4284257 is about 2069.8446801632. The cubic root of 4284257 is about 162.4146391917.

The spelling of 4284257 in words is "four million, two hundred eighty-four thousand, two hundred fifty-seven".

Divisors: 1 29 241 613 6989 17777 147733 4284257