Base | Representation |
---|---|
bin | 11101111001011001010001… |
… | …001011011111010011000001 |
3 | 122020120002012022022111110001 |
4 | 131321121101023133103001 |
5 | 114213242340114003032 |
6 | 1143352304103240001 |
7 | 36460441411460221 |
oct | 3571312113372301 |
9 | 566502168274401 |
10 | 131487490766017 |
11 | 38994593735a11 |
12 | 128b71a6749001 |
13 | 584a2a919ab99 |
14 | 2468058330081 |
15 | 10304586333e7 |
hex | 7796512df4c1 |
131487490766017 has 16 divisors (see below), whose sum is σ = 144019766396160. Its totient is φ = 119616417004032.
The previous prime is 131487490765957. The next prime is 131487490766041. The reversal of 131487490766017 is 710667094784131.
It is a cyclic number.
It is not a de Polignac number, because 131487490766017 - 27 = 131487490765889 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 131487490766017.
It is not an unprimeable number, because it can be changed into a prime (131487490766057) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1389032208 + ... + 1389126865.
It is an arithmetic number, because the mean of its divisors is an integer number (9001235399760).
Almost surely, 2131487490766017 is an apocalyptic number.
It is an amenable number.
131487490766017 is a deficient number, since it is larger than the sum of its proper divisors (12532275630143).
131487490766017 is a wasteful number, since it uses less digits than its factorization.
131487490766017 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2778159192.
The product of its (nonzero) digits is 42674688, while the sum is 64.
The spelling of 131487490766017 in words is "one hundred thirty-one trillion, four hundred eighty-seven billion, four hundred ninety million, seven hundred sixty-six thousand, seventeen".
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