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16971889139711 = 1117264720174091
BaseRepresentation
bin1111011011111001001101…
…1011000101111111111111
32020002111102010122120022222
43312332103123011333333
54211031412104432321
6100032440033155555
73401115143263562
oct366762333057777
966074363576288
1016971889139711
115453812a65a20
121aa13233bbbbb
139615998bc2bc
1442962db984d9
151e67277cd3ab
hexf6f936c5fff

16971889139711 has 48 divisors (see below), whose sum is σ = 19712940648192. Its totient is φ = 14488227532800.

The previous prime is 16971889139671. The next prime is 16971889139743. The reversal of 16971889139711 is 11793198817961.

It is not a de Polignac number, because 16971889139711 - 214 = 16971889123327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16971889132711) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4148589776 + ... + 4148593866.

It is an arithmetic number, because the mean of its divisors is an integer number (410686263504).

Almost surely, 216971889139711 is an apocalyptic number.

16971889139711 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16971889139711 is a deficient number, since it is larger than the sum of its proper divisors (2741051508481).

16971889139711 is a wasteful number, since it uses less digits than its factorization.

16971889139711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6800 (or 6783 counting only the distinct ones).

The product of its digits is 41150592, while the sum is 71.

The spelling of 16971889139711 in words is "sixteen trillion, nine hundred seventy-one billion, eight hundred eighty-nine million, one hundred thirty-nine thousand, seven hundred eleven".

Divisors: 1 11 17 187 289 647 2017 3179 4091 7117 10999 22187 34289 45001 69547 120989 186983 377179 582913 765017 1182299 1304999 2056813 2646877 6412043 8251547 13005289 14354989 22184983 29115647 44996909 90767017 140276299 244034813 377144711 494965999 764947453 1543039289 2384697083 4148591821 5338750909 8414421983 26231667913 58726259999 90758765453 998346419983 1542899012701 16971889139711