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71300661487 = 1160631106907
BaseRepresentation
bin100001001100111011…
…0011100000011101111
320211001001202220000021
41002121312130003233
52132010432131422
652431032343011
75102616423436
oct1023166340357
9224031686007
1071300661487
1128269401320
121199a544a67
136953a54733
14364566a11d
151cc48d1dc7
hex1099d9c0ef

71300661487 has 8 divisors (see below), whose sum is σ = 77784550272. Its totient is φ = 64817107800.

The previous prime is 71300661463. The next prime is 71300661493. The reversal of 71300661487 is 78416600317.

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 71300661487 - 219 = 71300137199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71300661407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613488 + ... + 720394.

It is an arithmetic number, because the mean of its divisors is an integer number (9723068784).

Almost surely, 271300661487 is an apocalyptic number.

71300661487 is a deficient number, since it is larger than the sum of its proper divisors (6483888785).

71300661487 is a wasteful number, since it uses less digits than its factorization.

71300661487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167549.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 71300661487 in words is "seventy-one billion, three hundred million, six hundred sixty-one thousand, four hundred eighty-seven".

Divisors: 1 11 60631 106907 666941 1175977 6481878317 71300661487