Base | Representation |
---|---|
bin | 1000010101110… |
… | …10101010111100 |
3 | 11212122212122110 |
4 | 10022322222330 |
5 | 120403024440 |
6 | 10535414020 |
7 | 1506511656 |
oct | 412725274 |
9 | 155585573 |
10 | 69970620 |
11 | 36550a65 |
12 | 1b524310 |
13 | 1165b345 |
14 | 94156d6 |
15 | 6222080 |
hex | 42baabc |
69970620 has 48 divisors (see below), whose sum is σ = 202678560. Its totient is φ = 18014976.
The previous prime is 69970619. The next prime is 69970631. The reversal of 69970620 is 2607996.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18367 + ... + 21846.
It is an arithmetic number, because the mean of its divisors is an integer number (4222470).
Almost surely, 269970620 is an apocalyptic number.
69970620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
69970620 is an abundant number, since it is smaller than the sum of its proper divisors (132707940).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69970620 is a wasteful number, since it uses less digits than its factorization.
69970620 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40254 (or 40252 counting only the distinct ones).
The product of its (nonzero) digits is 40824, while the sum is 39.
The square root of 69970620 is about 8364.8442902423. The cubic root of 69970620 is about 412.0708631684.
The spelling of 69970620 in words is "sixty-nine million, nine hundred seventy thousand, six hundred twenty".
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