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4280531 is a prime number
BaseRepresentation
bin10000010101000011010011
322001110210012
4100111003103
52043434111
6231425135
751245453
oct20250323
98043705
104280531
112464032
1215251ab
13b6b478
147d5d63
1559848b
hex4150d3

4280531 has 2 divisors, whose sum is σ = 4280532. Its totient is φ = 4280530.

The previous prime is 4280527. The next prime is 4280533. The reversal of 4280531 is 1350824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4280531 - 22 = 4280527 is a prime.

It is a super-2 number, since 2×42805312 = 36645891283922, which contains 22 as substring.

Together with 4280533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4280497 and 4280506.

It is not a weakly prime, because it can be changed into another prime (4280533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2140265 + 2140266.

It is an arithmetic number, because the mean of its divisors is an integer number (2140266).

Almost surely, 24280531 is an apocalyptic number.

4280531 is a deficient number, since it is larger than the sum of its proper divisors (1).

4280531 is an equidigital number, since it uses as much as digits as its factorization.

4280531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 4280531 is about 2068.9444168464. The cubic root of 4280531 is about 162.3675417631.

The spelling of 4280531 in words is "four million, two hundred eighty thousand, five hundred thirty-one".