Base | Representation |
---|---|
bin | 10110100101110… |
… | …000000101001100 |
3 | 222102010221102121 |
4 | 112211300011030 |
5 | 1234010320040 |
6 | 101335102324 |
7 | 12251255515 |
oct | 2645600514 |
9 | 872127377 |
10 | 378995020 |
11 | 184a29628 |
12 | a6b119a4 |
13 | 60698911 |
14 | 38497a0c |
15 | 23414c4a |
hex | 1697014c |
378995020 has 12 divisors (see below), whose sum is σ = 795889584. Its totient is φ = 151598000.
The previous prime is 378995011. The next prime is 378995027. The reversal of 378995020 is 20599873.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (378995027) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9474856 + ... + 9474895.
It is an arithmetic number, because the mean of its divisors is an integer number (66324132).
Almost surely, 2378995020 is an apocalyptic number.
It is an amenable number.
378995020 is an abundant number, since it is smaller than the sum of its proper divisors (416894564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
378995020 is a wasteful number, since it uses less digits than its factorization.
378995020 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18949760 (or 18949758 counting only the distinct ones).
The product of its (nonzero) digits is 136080, while the sum is 43.
The square root of 378995020 is about 19467.7944308029. The cubic root of 378995020 is about 723.6765518974.
The spelling of 378995020 in words is "three hundred seventy-eight million, nine hundred ninety-five thousand, twenty".
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