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8129663512090 = 25812966351209
BaseRepresentation
bin111011001001101010110…
…1101001010111000011010
31001210012002020011021211221
41312103111231022320122
52031144022324341330
625142414343042254
71466230432454251
oct166232555127032
931705066137757
108129663512090
112654853126a8a
12ab36bba4038a
1346c815b63b03
14201699197798
15e17104adb7a
hex764d5b4ae1a

8129663512090 has 8 divisors (see below), whose sum is σ = 14633394321780. Its totient is φ = 3251865404832.

The previous prime is 8129663512051. The next prime is 8129663512093. The reversal of 8129663512090 is 902153669218.

It can be written as a sum of positive squares in 2 ways, for example, as 7148559395041 + 981104117049 = 2673679^2 + 990507^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×81296635120903 (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8129663512093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406483175595 + ... + 406483175614.

Almost surely, 28129663512090 is an apocalyptic number.

8129663512090 is a deficient number, since it is larger than the sum of its proper divisors (6503730809690).

8129663512090 is a wasteful number, since it uses less digits than its factorization.

8129663512090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812966351216.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 8129663512090 in words is "eight trillion, one hundred twenty-nine billion, six hundred sixty-three million, five hundred twelve thousand, ninety".

Divisors: 1 2 5 10 812966351209 1625932702418 4064831756045 8129663512090