Base | Representation |
---|---|
bin | 101000100010001111… |
… | …0111100100000110011 |
3 | 22022200112202020222120 |
4 | 1101010132330200303 |
5 | 2411233331340122 |
6 | 103553415205323 |
7 | 6201065262546 |
oct | 1210436744063 |
9 | 268615666876 |
10 | 87048308787 |
11 | 33a0a556870 |
12 | 14a54376843 |
13 | 829345342b |
14 | 42dacac85d |
15 | 23e717b75c |
hex | 14447bc833 |
87048308787 has 16 divisors (see below), whose sum is σ = 126641180160. Its totient is φ = 52745943200.
The previous prime is 87048308783. The next prime is 87048308797. The reversal of 87048308787 is 78780384078.
It is a cyclic number.
It is not a de Polignac number, because 87048308787 - 22 = 87048308783 is a prime.
It is a super-2 number, since 2×870483087872 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 87048308787.
It is not an unprimeable number, because it can be changed into a prime (87048308783) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96987 + ... + 428372.
It is an arithmetic number, because the mean of its divisors is an integer number (7915073760).
Almost surely, 287048308787 is an apocalyptic number.
87048308787 is a deficient number, since it is larger than the sum of its proper divisors (39592871373).
87048308787 is a wasteful number, since it uses less digits than its factorization.
87048308787 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 530394.
The product of its (nonzero) digits is 16859136, while the sum is 60.
The spelling of 87048308787 in words is "eighty-seven billion, forty-eight million, three hundred eight thousand, seven hundred eighty-seven".
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