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860640066848 = 2547572234087
BaseRepresentation
bin11001000011000100010…
…01010011110100100000
310001021110111010022101102
430201202021103310200
5103100042324114343
61455212251253532
7116115314602562
oct14414211236440
93037414108342
10860640066848
11301aa4976521
1211a96a74a2a8
13632091c0533
142d925c31332
15175c1d293b8
hexc862253d20

860640066848 has 24 divisors (see below), whose sum is σ = 1730435882112. Its totient is φ = 421164287296.

The previous prime is 860640066841. The next prime is 860640066901. The reversal of 860640066848 is 848660046068.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 860640066793 and 860640066802.

It is not an unprimeable number, because it can be changed into a prime (860640066841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286115540 + ... + 286118547.

It is an arithmetic number, because the mean of its divisors is an integer number (72101495088).

Almost surely, 2860640066848 is an apocalyptic number.

It is an amenable number.

860640066848 is an abundant number, since it is smaller than the sum of its proper divisors (869795815264).

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

860640066848 is a wasteful number, since it uses less digits than its factorization.

860640066848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572234144 (or 572234136 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 56.

The spelling of 860640066848 in words is "eight hundred sixty billion, six hundred forty million, sixty-six thousand, eight hundred forty-eight".

Divisors: 1 2 4 8 16 32 47 94 188 376 752 1504 572234087 1144468174 2288936348 4577872696 9155745392 18311490784 26895002089 53790004178 107580008356 215160016712 430320033424 860640066848