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131783140869942 = 2323954950296159
BaseRepresentation
bin11101111101101100100111…
…010011001000011100110110
3122021121100022200010220120010
4131331230213103020130312
5114233113333030314232
61144140201131121050
736521006040054042
oct3575544723103466
9567540280126503
10131783140869942
1138a98a09494981
12129445572a3186
13586c134a5a293
1424784a387b022
151037eadea40cc
hex77db274c8736

131783140869942 has 16 divisors (see below), whose sum is σ = 275025685294080. Its totient is φ = 42017813030952.

The previous prime is 131783140869881. The next prime is 131783140869983. The reversal of 131783140869942 is 249968041387131.

It is a congruent number.

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, 477475147942 + ... + 477475148217.

It is an arithmetic number, because the mean of its divisors is an integer number (17189105330880).

Almost surely, 2131783140869942 is an apocalyptic number.

131783140869942 is an abundant number, since it is smaller than the sum of its proper divisors (143242544424138).

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

131783140869942 is a wasteful number, since it uses less digits than its factorization.

131783140869942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954950296187.

The product of its (nonzero) digits is 62705664, while the sum is 66.

The spelling of 131783140869942 in words is "one hundred thirty-one trillion, seven hundred eighty-three billion, one hundred forty million, eight hundred sixty-nine thousand, nine hundred forty-two".

Divisors: 1 2 3 6 23 46 69 138 954950296159 1909900592318 2864850888477 5729701776954 21963856811657 43927713623314 65891570434971 131783140869942