Base | Representation |
---|---|
bin | 1000010101001… |
… | …10101111110000 |
3 | 11212111201200210 |
4 | 10022212233300 |
5 | 120342422013 |
6 | 10533544120 |
7 | 1506022020 |
oct | 412465760 |
9 | 155451623 |
10 | 69889008 |
11 | 364a5712 |
12 | 1b4a5040 |
13 | 11630157 |
14 | 93d3a80 |
15 | 6207cc3 |
hex | 42a6bf0 |
69889008 has 40 divisors (see below), whose sum is σ = 206339968. Its totient is φ = 19968192.
The previous prime is 69888979. The next prime is 69889037. The reversal of 69889008 is 80098896.
It is an interprime number because it is at equal distance from previous prime (69888979) and next prime (69889037).
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103666 + ... + 104337.
Almost surely, 269889008 is an apocalyptic number.
It is an amenable number.
69889008 is an abundant number, since it is smaller than the sum of its proper divisors (136450960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69889008 is a wasteful number, since it uses less digits than its factorization.
69889008 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 208021 (or 208015 counting only the distinct ones).
The product of its (nonzero) digits is 248832, while the sum is 48.
The square root of 69889008 is about 8359.9645932265. The cubic root of 69889008 is about 411.9105910866.
The spelling of 69889008 in words is "sixty-nine million, eight hundred eighty-nine thousand, eight".
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