Base | Representation |
---|---|
bin | 11101111010000000111101… |
… | …101100001000110001011101 |
3 | 122020201011012202102100022222 |
4 | 131322000331230020301131 |
5 | 114214442133021000044 |
6 | 1143424033331315125 |
7 | 36463510553362205 |
oct | 3572007554106135 |
9 | 566634182370288 |
10 | 131530113453149 |
11 | 38a00676074684 |
12 | 12903500a4baa5 |
13 | 585130c707908 |
14 | 246a13cd67405 |
15 | 10316004cc8ee |
hex | 77a03db08c5d |
131530113453149 has 8 divisors (see below), whose sum is σ = 135241279893720. Its totient is φ = 127864482797376.
The previous prime is 131530113453061. The next prime is 131530113453157. The reversal of 131530113453149 is 941354311035131.
It can be written as a sum of positive squares in 4 ways, for example, as 11919100284025 + 119611013169124 = 3452405^2 + 10936682^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-131530113453149 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131530113453649) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11383940342 + ... + 11383951895.
It is an arithmetic number, because the mean of its divisors is an integer number (16905159986715).
Almost surely, 2131530113453149 is an apocalyptic number.
It is an amenable number.
131530113453149 is a deficient number, since it is larger than the sum of its proper divisors (3711166440571).
131530113453149 is a wasteful number, since it uses less digits than its factorization.
131530113453149 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22767892399.
The product of its (nonzero) digits is 291600, while the sum is 44.
The spelling of 131530113453149 in words is "one hundred thirty-one trillion, five hundred thirty billion, one hundred thirteen million, four hundred fifty-three thousand, one hundred forty-nine".
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