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87252701 is a prime number
BaseRepresentation
bin1010011001101…
…01111011011101
320002011220012112
411030311323131
5134314041301
612354043405
72106431024
oct514657335
9202156175
1087252701
1145285278
1225279565
13150cc623
14b8338bb
1579d79bb
hex5335edd

87252701 has 2 divisors, whose sum is σ = 87252702. Its totient is φ = 87252700.

The previous prime is 87252689. The next prime is 87252703. The reversal of 87252701 is 10725278.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81468676 + 5784025 = 9026^2 + 2405^2 .

It is a cyclic number.

It is not a de Polignac number, because 87252701 - 26 = 87252637 is a prime.

It is a super-2 number, since 2×872527012 = 15226067663590802, which contains 22 as substring.

Together with 87252703, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87252703) 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, 43626350 + 43626351.

It is an arithmetic number, because the mean of its divisors is an integer number (43626351).

Almost surely, 287252701 is an apocalyptic number.

It is an amenable number.

87252701 is a deficient number, since it is larger than the sum of its proper divisors (1).

87252701 is an equidigital number, since it uses as much as digits as its factorization.

87252701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 87252701 is about 9340.9154262310. The cubic root of 87252701 is about 443.5333628532.

Adding to 87252701 its reverse (10725278), we get a palindrome (97977979).

The spelling of 87252701 in words is "eighty-seven million, two hundred fifty-two thousand, seven hundred one".