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81714367368 = 23322401947251
BaseRepresentation
bin100110000011010001…
…1100100101110001000
321210220210222221220200
41030012203210232020
52314322334223433
6101312234252200
75621646443124
oct1140643445610
9253823887820
1081714367368
11317226a2717
1213a05b87060
137923371a8a
143d52720584
1521d3c5e613
hex13068e4b88

81714367368 has 48 divisors (see below), whose sum is σ = 221323642800. Its totient is φ = 27236412000.

The previous prime is 81714367337. The next prime is 81714367421. The reversal of 81714367368 is 86376341718.

81714367368 is a `hidden beast` number, since 8 + 171 + 436 + 7 + 36 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1705743 + ... + 1752993.

It is an arithmetic number, because the mean of its divisors is an integer number (4610909225).

Almost surely, 281714367368 is an apocalyptic number.

It is an amenable number.

81714367368 is an abundant number, since it is smaller than the sum of its proper divisors (139609275432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81714367368 is a wasteful number, since it uses less digits than its factorization.

81714367368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71282 (or 71275 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 81714367368 in words is "eighty-one billion, seven hundred fourteen million, three hundred sixty-seven thousand, three hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 24019 47251 48038 72057 94502 96076 141753 144114 189004 192152 216171 283506 288228 378008 425259 432342 567012 576456 850518 864684 1134024 1701036 1729368 3402072 1134921769 2269843538 3404765307 4539687076 6809530614 9079374152 10214295921 13619061228 20428591842 27238122456 40857183684 81714367368