Base | Representation |
---|---|
bin | 111101010110011111… |
… | …1101101000000100000 |
3 | 110121001222111120000100 |
4 | 1322230333231000200 |
5 | 4124311324240311 |
6 | 140305321422400 |
7 | 12342631263135 |
oct | 1725477550040 |
9 | 417058446010 |
10 | 131751399456 |
11 | 5096a2594a6 |
12 | 2164b33aa00 |
13 | c5689a9481 |
14 | 653bd3058c |
15 | 36619bba56 |
hex | 1eacfed020 |
131751399456 has 72 divisors (see below), whose sum is σ = 375646602240. Its totient is φ = 43802430336.
The previous prime is 131751399413. The next prime is 131751399469. The reversal of 131751399456 is 654993157131.
131751399456 is a `hidden beast` number, since 1 + 3 + 175 + 13 + 9 + 9 + 456 = 666.
It is a tau number, because it is divible by the number of its divisors (72).
It is a super-2 number, since 2×1317513994562 (a number of 23 digits) contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 486916 + ... + 707523.
It is an arithmetic number, because the mean of its divisors is an integer number (5217313920).
Almost surely, 2131751399456 is an apocalyptic number.
131751399456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
131751399456 is an abundant number, since it is smaller than the sum of its proper divisors (243895202784).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131751399456 is a wasteful number, since it uses less digits than its factorization.
131751399456 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1194838 (or 1194827 counting only the distinct ones).
The product of its digits is 3061800, while the sum is 54.
The spelling of 131751399456 in words is "one hundred thirty-one billion, seven hundred fifty-one million, three hundred ninety-nine thousand, four hundred fifty-six".
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