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7862830081 is a prime number
BaseRepresentation
bin1110101001010100…
…10100010000000001
3202021222022011010221
413110222110100001
5112100341030311
63340115423041
7365563644601
oct72452242001
922258264127
107862830081
1133753a9687
1216352b4a81
13983cb6ca2
1454839cc01
15310452671
hex1d4a94401

7862830081 has 2 divisors, whose sum is σ = 7862830082. Its totient is φ = 7862830080.

The previous prime is 7862830069. The next prime is 7862830121. The reversal of 7862830081 is 1800382687.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5843226481 + 2019603600 = 76441^2 + 44940^2 .

It is a cyclic number.

It is not a de Polignac number, because 7862830081 - 229 = 7325959169 is a prime.

It is a super-2 number, since 2×78628300812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7862830061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3931415040 + 3931415041.

It is an arithmetic number, because the mean of its divisors is an integer number (3931415041).

Almost surely, 27862830081 is an apocalyptic number.

It is an amenable number.

7862830081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7862830081 is an equidigital number, since it uses as much as digits as its factorization.

7862830081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 7862830081 is about 88672.6005088381. The cubic root of 7862830081 is about 1988.5032119827.

The spelling of 7862830081 in words is "seven billion, eight hundred sixty-two million, eight hundred thirty thousand, eighty-one".