Base | Representation |
---|---|
bin | 1101000001001101… |
… | …10100111001111100 |
3 | 200001002222101112102 |
4 | 12200212310321330 |
5 | 103303303000103 |
6 | 3113321124232 |
7 | 335130525050 |
oct | 64046647174 |
9 | 20032871472 |
10 | 6989500028 |
11 | 2a67432905 |
12 | 1430929678 |
13 | 87509a944 |
14 | 4a43c5c60 |
15 | 2ad942e88 |
hex | 1a09b4e7c |
6989500028 has 24 divisors (see below), whose sum is σ = 13982640000. Its totient is φ = 2994720048.
The previous prime is 6989500019. The next prime is 6989500043. The reversal of 6989500028 is 8200059896.
It is a super-2 number, since 2×69895000282 = 97706221282824001568, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 84323 + ... + 145221.
It is an arithmetic number, because the mean of its divisors is an integer number (582610000).
Almost surely, 26989500028 is an apocalyptic number.
It is an amenable number.
6989500028 is an abundant number, since it is smaller than the sum of its proper divisors (6993139972).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6989500028 is a wasteful number, since it uses less digits than its factorization.
6989500028 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 65009 (or 65007 counting only the distinct ones).
The product of its (nonzero) digits is 311040, while the sum is 47.
The square root of 6989500028 is about 83603.2297701470. The cubic root of 6989500028 is about 1911.9742411024.
The spelling of 6989500028 in words is "six billion, nine hundred eighty-nine million, five hundred thousand, twenty-eight".
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