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4281397 = 12973301
BaseRepresentation
bin10000010101010000110101
322001111222021
4100111100311
52044001042
6231433141
751251131
oct20252065
98044867
104281397
11246474a
1215257b1
13b6b993
147d63c1
15598867
hex415435

4281397 has 4 divisors (see below), whose sum is σ = 4285996. Its totient is φ = 4276800.

The previous prime is 4281383. The next prime is 4281413. The reversal of 4281397 is 7931824.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3006756 + 1274641 = 1734^2 + 1129^2 .

It is a cyclic number.

It is not a de Polignac number, because 4281397 - 219 = 3757109 is a prime.

It is a Duffinian number.

4281397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4281337) 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, 354 + ... + 2947.

It is an arithmetic number, because the mean of its divisors is an integer number (1071499).

Almost surely, 24281397 is an apocalyptic number.

It is an amenable number.

4281397 is a deficient number, since it is larger than the sum of its proper divisors (4599).

4281397 is a wasteful number, since it uses less digits than its factorization.

4281397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4598.

The product of its digits is 12096, while the sum is 34.

The square root of 4281397 is about 2069.1536917300. The cubic root of 4281397 is about 162.3784906236.

The spelling of 4281397 in words is "four million, two hundred eighty-one thousand, three hundred ninety-seven".

Divisors: 1 1297 3301 4281397