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7681071803973 = 3234715467153133
BaseRepresentation
bin110111111000110001110…
…0011100110111001000101
31000012022012002201101111220
41233301203203212321011
52001321313340211343
624200345145550553
71421640056036601
oct157614343467105
930168162641456
107681071803973
1124a1584874127
12a407874a5459
13439425478779
141c7aa1734501
15d4c07ba2183
hex6fc638e6e45

7681071803973 has 32 divisors (see below), whose sum is σ = 10914862288896. Its totient is φ = 4793519172288.

The previous prime is 7681071803957. The next prime is 7681071803987. The reversal of 7681071803973 is 3793081701867.

It is not a de Polignac number, because 7681071803973 - 24 = 7681071803957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7681071803903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50082915 + ... + 50236047.

It is an arithmetic number, because the mean of its divisors is an integer number (341089446528).

Almost surely, 27681071803973 is an apocalyptic number.

It is an amenable number.

7681071803973 is a deficient number, since it is larger than the sum of its proper divisors (3233790484923).

7681071803973 is a wasteful number, since it uses less digits than its factorization.

7681071803973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168673.

The product of its (nonzero) digits is 10668672, while the sum is 60.

The spelling of 7681071803973 in words is "seven trillion, six hundred eighty-one billion, seventy-one million, eight hundred three thousand, nine hundred seventy-three".

Divisors: 1 3 23 47 69 141 1081 3243 15467 46401 153133 355741 459399 726949 1067223 2180847 3522059 7197251 10566177 16719827 21591753 50159481 165536773 496610319 2368508111 7105524333 54475686553 111319881217 163427059659 333959643651 2560357267991 7681071803973