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3988740458087 = 7112291999113161
BaseRepresentation
bin111010000010110011011…
…101010100011001100111
3112010022122011212201010022
4322002303131110121213
51010322420024124322
612252222502545355
7561114464324240
oct72026335243147
915108564781108
103988740458087
1112a8685003130
1254506513825b
1322c1a119a4b8
14db0adbcbcc7
156db5274e942
hex3a0b3754667

3988740458087 has 32 divisors (see below), whose sum is σ = 4997233920000. Its totient is φ = 3092961542400.

The previous prime is 3988740458081. The next prime is 3988740458111. The reversal of 3988740458087 is 7808540478893.

It is a cyclic number.

It is not a de Polignac number, because 3988740458087 - 212 = 3988740453991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3988740458087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3988740458081) 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, 35191787 + ... + 35304947.

It is an arithmetic number, because the mean of its divisors is an integer number (156163560000).

Almost surely, 23988740458087 is an apocalyptic number.

3988740458087 is a deficient number, since it is larger than the sum of its proper divisors (1008493461913).

3988740458087 is a wasteful number, since it uses less digits than its factorization.

3988740458087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115407.

The product of its (nonzero) digits is 433520640, while the sum is 71.

The spelling of 3988740458087 in words is "three trillion, nine hundred eighty-eight billion, seven hundred forty million, four hundred fifty-eight thousand, eighty-seven".

Divisors: 1 7 11 77 229 1603 1999 2519 13993 17633 21989 113161 153923 457771 792127 1244771 3204397 5035481 8713397 25913869 35248367 181397083 226208839 285052559 1583461873 1995367913 2488297229 17418080603 51801824131 362612768917 569820065441 3988740458087