Base | Representation |
---|---|
bin | 111101000111010011… |
… | …0000111101011000010 |
3 | 110112202102210200222101 |
4 | 1322032212013223002 |
5 | 4122240243021300 |
6 | 140142542101014 |
7 | 12324166202452 |
oct | 1721646075302 |
9 | 415672720871 |
10 | 131241376450 |
11 | 50728376688 |
12 | 2152857a76a |
13 | c4b7125202 |
14 | 64d02c9d62 |
15 | 3631d23b6a |
hex | 1e8e987ac2 |
131241376450 has 12 divisors (see below), whose sum is σ = 244108960290. Its totient is φ = 52496550560.
The previous prime is 131241376447. The next prime is 131241376451. The reversal of 131241376450 is 54673142131.
It is a happy number.
It can be written as a sum of positive squares in 3 ways, for example, as 59565771721 + 71675604729 = 244061^2 + 267723^2 .
It is a super-3 number, since 3×1312413764503 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (131241376451) by changing a digit.
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 5 ways as a sum of consecutive naturals, for example, 1312413715 + ... + 1312413814.
Almost surely, 2131241376450 is an apocalyptic number.
131241376450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131241376450 is a deficient number, since it is larger than the sum of its proper divisors (112867583840).
131241376450 is a wasteful number, since it uses less digits than its factorization.
131241376450 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2624827541 (or 2624827536 counting only the distinct ones).
The product of its (nonzero) digits is 60480, while the sum is 37.
The spelling of 131241376450 in words is "one hundred thirty-one billion, two hundred forty-one million, three hundred seventy-six thousand, four hundred fifty".
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