Base | Representation |
---|---|
bin | 10010100110100010… |
… | …11111110001111111 |
3 | 221210000100200211022 |
4 | 21103101133301333 |
5 | 130423134431033 |
6 | 4331000414355 |
7 | 502326232646 |
oct | 112321376177 |
9 | 27700320738 |
10 | 9987030143 |
11 | 4265466622 |
12 | 1b287773bb |
13 | c320c8bbc |
14 | 6aa54835d |
15 | 3d6b9a098 |
hex | 25345fc7f |
9987030143 has 8 divisors (see below), whose sum is σ = 10218052800. Its totient is φ = 9757584928.
The previous prime is 9987030139. The next prime is 9987030167. The reversal of 9987030143 is 3410307899.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 9987030143 - 22 = 9987030139 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 9987030094 and 9987030103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (9987030113) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381548 + ... + 406881.
It is an arithmetic number, because the mean of its divisors is an integer number (1277256600).
Almost surely, 29987030143 is an apocalyptic number.
9987030143 is a deficient number, since it is larger than the sum of its proper divisors (231022657).
9987030143 is a wasteful number, since it uses less digits than its factorization.
9987030143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 788721.
The product of its (nonzero) digits is 163296, while the sum is 44.
The square root of 9987030143 is about 99935.1296742042. The cubic root of 9987030143 is about 2153.5028633989.
The spelling of 9987030143 in words is "nine billion, nine hundred eighty-seven million, thirty thousand, one hundred forty-three".
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