Base | Representation |
---|---|
bin | 10000010000011000000010… |
… | …000010111101100000001000 |
3 | 100101010202122221222120212022 |
4 | 100100120002002331200020 |
5 | 33332324313321033343 |
6 | 412015530121104012 |
7 | 21026163311420000 |
oct | 2020300202754010 |
9 | 311122587876768 |
10 | 71494059939848 |
11 | 20864507a98397 |
12 | 8028040028008 |
13 | 30b7b265b0000 |
14 | 139248c247000 |
15 | 83ead0647568 |
hex | 4106020bd808 |
71494059939848 has 500 divisors, whose sum is σ = 178827389965515. Its totient is φ = 26794766246976.
The previous prime is 71494059939803. The next prime is 71494059939871. The reversal of 71494059939848 is 84893995049417.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 3 ways, for example, as 1251602884 + 71492808336964 = 35378^2 + 8455342^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=5978882.
It is a super-2 number, since 2×714940599398482 (a number of 29 digits) contains 22 as substring.
It is a Duffinian number.
It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 71494059939848 = 34583 + 414963 = 311223 + 345803.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 124 ways as a sum of consecutive naturals, for example, 3762845259983 + ... + 3762845260001.
Almost surely, 271494059939848 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 71494059939848
71494059939848 is an abundant number, since it is smaller than the sum of its proper divisors (107333330025667).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
71494059939848 is an frugal number, since it uses more digits than its factorization.
71494059939848 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 162 (or 41 counting only the distinct ones).
The product of its (nonzero) digits is 2821754880, while the sum is 80.
The spelling of 71494059939848 in words is "seventy-one trillion, four hundred ninety-four billion, fifty-nine million, nine hundred thirty-nine thousand, eight hundred forty-eight".
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