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8700052681 is a prime number
BaseRepresentation
bin10000001101001000…
…00100010011001001
3211110022200110122101
420012210010103021
5120304203141211
63555144153401
7425411141035
oct100644042311
924408613571
108700052681
113764a53391
121829768861
13a885a0488
145c76571c5
1535dbcd5c1
hex2069044c9

8700052681 has 2 divisors, whose sum is σ = 8700052682. Its totient is φ = 8700052680.

The previous prime is 8700052639. The next prime is 8700052717. The reversal of 8700052681 is 1862500078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8571797056 + 128255625 = 92584^2 + 11325^2 .

It is a cyclic number.

It is not a de Polignac number, because 8700052681 - 29 = 8700052169 is a prime.

It is a super-2 number, since 2×87000526812 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8700052681.

It is not a weakly prime, because it can be changed into another prime (8700052601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4350026340 + 4350026341.

It is an arithmetic number, because the mean of its divisors is an integer number (4350026341).

Almost surely, 28700052681 is an apocalyptic number.

It is an amenable number.

8700052681 is a deficient number, since it is larger than the sum of its proper divisors (1).

8700052681 is an equidigital number, since it uses as much as digits as its factorization.

8700052681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 8700052681 is about 93274.0729302629. The cubic root of 8700052681 is about 2056.7142675212.

The spelling of 8700052681 in words is "eight billion, seven hundred million, fifty-two thousand, six hundred eighty-one".