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534656021 is a prime number
BaseRepresentation
bin11111110111100…
…011010000010101
31101021001100011212
4133313203100111
52043332443041
6125015311205
716151333624
oct3767432025
91337040155
10534656021
11254887a89
1212b07b505
13869ca413
14510176bb
1531e118eb
hex1fde3415

534656021 has 2 divisors, whose sum is σ = 534656022. Its totient is φ = 534656020.

The previous prime is 534655987. The next prime is 534656041. The reversal of 534656021 is 120656435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 281400625 + 253255396 = 16775^2 + 15914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-534656021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534656041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267328010 + 267328011.

It is an arithmetic number, because the mean of its divisors is an integer number (267328011).

Almost surely, 2534656021 is an apocalyptic number.

It is an amenable number.

534656021 is a deficient number, since it is larger than the sum of its proper divisors (1).

534656021 is an equidigital number, since it uses as much as digits as its factorization.

534656021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 534656021 is about 23122.6300623437. The cubic root of 534656021 is about 811.6301170928.

The spelling of 534656021 in words is "five hundred thirty-four million, six hundred fifty-six thousand, twenty-one".