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1289319141971 = 7199694128887
BaseRepresentation
bin10010110000110001011…
…010001101001001010011
311120020221212102122110202
4102300301122031021103
5132111011200020341
62424145515445415
7162102346611530
oct22606132151123
94506855378422
101289319141971
114578850524a3
12189a6645686b
13947753405c3
1446590c31d87
15238113c679b
hex12c3168d253

1289319141971 has 8 divisors (see below), whose sum is σ = 1551060622080. Its totient is φ = 1046965919688.

The previous prime is 1289319141947. The next prime is 1289319142003. The reversal of 1289319141971 is 1791419139821.

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

It is a cyclic number.

It is not a de Polignac number, because 1289319141971 - 26 = 1289319141907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1289319141911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4847064311 + ... + 4847064576.

It is an arithmetic number, because the mean of its divisors is an integer number (193882577760).

Almost surely, 21289319141971 is an apocalyptic number.

1289319141971 is a deficient number, since it is larger than the sum of its proper divisors (261741480109).

1289319141971 is an equidigital number, since it uses as much as digits as its factorization.

1289319141971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9694128913.

The product of its digits is 979776, while the sum is 56.

The spelling of 1289319141971 in words is "one trillion, two hundred eighty-nine billion, three hundred nineteen million, one hundred forty-one thousand, nine hundred seventy-one".

Divisors: 1 7 19 133 9694128887 67858902209 184188448853 1289319141971