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12787439551152 = 243738057855807
BaseRepresentation
bin1011101000010100111011…
…0010101100001010110000
31200021110121122111221010220
42322011032302230022300
53134002134011114102
643110245120253040
72456601446530110
oct272051662541260
950243548457126
1012787439551152
114090139293462
12152635b771180
13719b093762b6
14322cb5b17040
1517296d6881bc
hexba14ecac2b0

12787439551152 has 40 divisors (see below), whose sum is σ = 37753392961536. Its totient is φ = 3653554157376.

The previous prime is 12787439551123. The next prime is 12787439551217. The reversal of 12787439551152 is 25115593478721.

It is a super-2 number, since 2×127874395511522 (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19028927568 + ... + 19028928239.

Almost surely, 212787439551152 is an apocalyptic number.

12787439551152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12787439551152 is an abundant number, since it is smaller than the sum of its proper divisors (24965953410384).

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

12787439551152 is a wasteful number, since it uses less digits than its factorization.

12787439551152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38057855825 (or 38057855819 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 60.

The spelling of 12787439551152 in words is "twelve trillion, seven hundred eighty-seven billion, four hundred thirty-nine million, five hundred fifty-one thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 38057855807 76115711614 114173567421 152231423228 228347134842 266404990649 304462846456 456694269684 532809981298 608925692912 799214971947 913388539368 1065619962596 1598429943894 1826777078736 2131239925192 3196859887788 4262479850384 6393719775576 12787439551152