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71680037974 = 2172108236411
BaseRepresentation
bin100001011000001110…
…1101001010001010110
320212000111122012201021
41002300131221101112
52133300042203344
652532423551354
75115204161356
oct1026035512126
9225014565637
1071680037974
1128443570506
1211a855bb55a
1369b4524b6c
14367dbc2b66
151ce7d6eb84
hex10b0769456

71680037974 has 8 divisors (see below), whose sum is σ = 113844766248. Its totient is φ = 33731782560.

The previous prime is 71680037921. The next prime is 71680037981. The reversal of 71680037974 is 47973008617.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054118172 + ... + 1054118239.

It is an arithmetic number, because the mean of its divisors is an integer number (14230595781).

Almost surely, 271680037974 is an apocalyptic number.

71680037974 is a deficient number, since it is larger than the sum of its proper divisors (42164728274).

71680037974 is a wasteful number, since it uses less digits than its factorization.

71680037974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108236430.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 71680037974 in words is "seventy-one billion, six hundred eighty million, thirty-seven thousand, nine hundred seventy-four".

Divisors: 1 2 17 34 2108236411 4216472822 35840018987 71680037974