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47881073751868 = 2271710038348281
BaseRepresentation
bin10101110001100001011100…
…11001000111011100111100
320021112101102100121001100001
422320300232121013130330
522233440414340024433
6245500132302044044
713041202433452420
oct1270605631073474
9207471370531301
1047881073751868
111429028196a925
12545380a879624
132094220594ba6
14bb765627ab80
1558076b0ca57d
hex2b8c2e64773c

47881073751868 has 12 divisors (see below), whose sum is σ = 95762147503792. Its totient is φ = 20520460179360.

The previous prime is 47881073751839. The next prime is 47881073751893. The reversal of 47881073751868 is 86815737018874.

47881073751868 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 47881073751868.

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, 855019174113 + ... + 855019174168.

Almost surely, 247881073751868 is an apocalyptic number.

It is an amenable number.

47881073751868 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47881073751868 is a wasteful number, since it uses less digits than its factorization.

47881073751868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710038348292 (or 1710038348290 counting only the distinct ones).

The product of its (nonzero) digits is 505774080, while the sum is 73.

The spelling of 47881073751868 in words is "forty-seven trillion, eight hundred eighty-one billion, seventy-three million, seven hundred fifty-one thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 28 1710038348281 3420076696562 6840153393124 11970268437967 23940536875934 47881073751868