Base | Representation |
---|---|
bin | 1100111010100011… |
… | …10000011100100010 |
3 | 122220012212122222000 |
4 | 12131101300130202 |
5 | 103200003120330 |
6 | 3104004024430 |
7 | 333552003501 |
oct | 63521603442 |
9 | 18805778860 |
10 | 6933645090 |
11 | 2a389531a9 |
12 | 1416092116 |
13 | 866642598 |
14 | 49ac06838 |
15 | 2a8aad560 |
hex | 19d470722 |
6933645090 has 128 divisors (see below), whose sum is σ = 19959436800. Its totient is φ = 1707552000.
The previous prime is 6933645077. The next prime is 6933645133. The reversal of 6933645090 is 905463396.
It is a happy number.
It is a super-2 number, since 2×69336450902 = 96150868468162216200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 160840 + ... + 199340.
It is an arithmetic number, because the mean of its divisors is an integer number (155933100).
Almost surely, 26933645090 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 6933645090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9979718400).
6933645090 is an abundant number, since it is smaller than the sum of its proper divisors (13025791710).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6933645090 is a wasteful number, since it uses less digits than its factorization.
6933645090 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38569 (or 38563 counting only the distinct ones).
The product of its (nonzero) digits is 524880, while the sum is 45.
The square root of 6933645090 is about 83268.5119958319. The cubic root of 6933645090 is about 1906.8675838379.
The spelling of 6933645090 in words is "six billion, nine hundred thirty-three million, six hundred forty-five thousand, ninety".
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