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4284981 = 3452901
BaseRepresentation
bin10000010110001000110101
322001200220000
4100112020311
52044104411
6231501513
751264441
oct20261065
98050800
104284981
112467408
121527899
13b704bc
147d7821
15599956
hex416235

4284981 has 10 divisors (see below), whose sum is σ = 6401142. Its totient is φ = 2856600.

The previous prime is 4284979. The next prime is 4284989. The reversal of 4284981 is 1894824.

It can be written as a sum of positive squares in only one way, i.e., 4284900 + 81 = 2070^2 + 9^2 .

It is not a de Polignac number, because 4284981 - 21 = 4284979 is a prime.

It is a super-2 number, since 2×42849812 = 36722124340722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4284989) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26370 + ... + 26531.

Almost surely, 24284981 is an apocalyptic number.

It is an amenable number.

4284981 is a deficient number, since it is larger than the sum of its proper divisors (2116161).

4284981 is an equidigital number, since it uses as much as digits as its factorization.

4284981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52913 (or 52904 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 4284981 is about 2070.0195651249. The cubic root of 4284981 is about 162.4237875361.

It can be divided in two parts, 42849 and 81, that multiplied together give a square (3470769 = 18632).

The spelling of 4284981 in words is "four million, two hundred eighty-four thousand, nine hundred eighty-one".

Divisors: 1 3 9 27 81 52901 158703 476109 1428327 4284981