Base | Representation |
---|---|
bin | 101101011110100110… |
… | …110001000000101101 |
3 | 11200001011202112212100 |
4 | 231132212301000231 |
5 | 1300001424021111 |
6 | 34233312125313 |
7 | 3346045653024 |
oct | 553646610055 |
9 | 150034675770 |
10 | 48831860781 |
11 | 19789348840 |
12 | 9569836839 |
13 | 47b2a524a2 |
14 | 25135358bb |
15 | 140c04e756 |
hex | b5e9b102d |
48831860781 has 24 divisors (see below), whose sum is σ = 78095650464. Its totient is φ = 29153345760.
The previous prime is 48831860771. The next prime is 48831860821. The reversal of 48831860781 is 18706813884.
It is a happy number.
48831860781 is a `hidden beast` number, since 488 + 3 + 1 + 86 + 0 + 7 + 81 = 666.
48831860781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 48831860781 - 27 = 48831860653 is a prime.
It is a super-2 number, since 2×488318607812 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (48831860711) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3674346 + ... + 3687611.
It is an arithmetic number, because the mean of its divisors is an integer number (3253985436).
Almost surely, 248831860781 is an apocalyptic number.
It is an amenable number.
48831860781 is a deficient number, since it is larger than the sum of its proper divisors (29263789683).
48831860781 is a wasteful number, since it uses less digits than its factorization.
48831860781 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7362041 (or 7362038 counting only the distinct ones).
The product of its (nonzero) digits is 2064384, while the sum is 54.
The spelling of 48831860781 in words is "forty-eight billion, eight hundred thirty-one million, eight hundred sixty thousand, seven hundred eighty-one".
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