Base | Representation |
---|---|
bin | 1110001100010110100… |
… | …01101011010001011001 |
3 | 1201121202102022201221200 |
4 | 13012023101223101121 |
5 | 30442221000034121 |
6 | 1012010453024413 |
7 | 50142603234450 |
oct | 7061321532131 |
9 | 1647672281850 |
10 | 487667971161 |
11 | 178900946728 |
12 | 7a61b025109 |
13 | 36caa282ba7 |
14 | 19863495b97 |
15 | ca43178a26 |
hex | 718b46b459 |
487667971161 has 24 divisors (see below), whose sum is σ = 805109208384. Its totient is φ = 278643175200.
The previous prime is 487667971121. The next prime is 487667971181. The reversal of 487667971161 is 161179766784.
487667971161 is a `hidden beast` number, since 487 + 6 + 6 + 7 + 97 + 1 + 1 + 61 = 666.
It is not a de Polignac number, because 487667971161 - 210 = 487667970137 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is not an unprimeable number, because it can be changed into a prime (487667971121) 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 23 ways as a sum of consecutive naturals, for example, 406390 + ... + 1067936.
It is an arithmetic number, because the mean of its divisors is an integer number (33546217016).
Almost surely, 2487667971161 is an apocalyptic number.
It is an amenable number.
487667971161 is a deficient number, since it is larger than the sum of its proper divisors (317441237223).
487667971161 is a wasteful number, since it uses less digits than its factorization.
487667971161 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 673261 (or 673258 counting only the distinct ones).
The product of its digits is 21337344, while the sum is 63.
The spelling of 487667971161 in words is "four hundred eighty-seven billion, six hundred sixty-seven million, nine hundred seventy-one thousand, one hundred sixty-one".
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