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6253000081 is a prime number
BaseRepresentation
bin1011101001011010…
…10011010110010001
3121010210010022112121
411310231103112101
5100301232000311
62512251254241
7310645423636
oct56455232621
917123108477
106253000081
112719723569
12126614a381
1378861bb63
1443466a18d
15268e60b71
hex174b53591

6253000081 has 2 divisors, whose sum is σ = 6253000082. Its totient is φ = 6253000080.

The previous prime is 6253000079. The next prime is 6253000121. The reversal of 6253000081 is 1800003526.

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., 5567398225 + 685601856 = 74615^2 + 26184^2 .

It is a cyclic number.

It is not a de Polignac number, because 6253000081 - 21 = 6253000079 is a prime.

It is a super-3 number, since 3×62530000813 (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 6253000079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6253000001) 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, 3126500040 + 3126500041.

It is an arithmetic number, because the mean of its divisors is an integer number (3126500041).

Almost surely, 26253000081 is an apocalyptic number.

It is an amenable number.

6253000081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6253000081 is an equidigital number, since it uses as much as digits as its factorization.

6253000081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 6253000081 is about 79075.9134060429. The cubic root of 6253000081 is about 1842.3104326520.

The spelling of 6253000081 in words is "six billion, two hundred fifty-three million, eighty-one", and thus it is an aban number.