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80670605971 = 1710146983463
BaseRepresentation
bin100101100100001010…
…1111100001010010011
321201020001222101110011
41023020111330022103
52310203133342341
6101020511015351
75554043560024
oct1131025741223
9251201871404
1080670605971
11312374aa29a
121377450a557
1377b8051c97
143c93c60c4b
1521722d6b81
hex12c857c293

80670605971 has 8 divisors (see below), whose sum is σ = 86261639904. Its totient is φ = 75173539200.

The previous prime is 80670605933. The next prime is 80670606053. The reversal of 80670605971 is 17950607608.

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 80670605971 - 29 = 80670605459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80670605471) 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 in 7 ways as a sum of consecutive naturals, for example, 23490015 + ... + 23493448.

It is an arithmetic number, because the mean of its divisors is an integer number (10782704988).

Almost surely, 280670605971 is an apocalyptic number.

80670605971 is a deficient number, since it is larger than the sum of its proper divisors (5591033933).

80670605971 is a wasteful number, since it uses less digits than its factorization.

80670605971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46983581.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 80670605971 in words is "eighty billion, six hundred seventy million, six hundred five thousand, nine hundred seventy-one".

Divisors: 1 17 101 1717 46983463 798718871 4745329763 80670605971