Base | Representation |
---|---|
bin | 10111100011000… |
… | …011001000000000 |
3 | 1000112101022122220 |
4 | 113203003020000 |
5 | 1302114020213 |
6 | 103111331040 |
7 | 12534662346 |
oct | 2743031000 |
9 | 1015338586 |
10 | 395063808 |
11 | 193004317 |
12 | b0380a80 |
13 | 63b03889 |
14 | 3a67b996 |
15 | 24a3ae23 |
hex | 178c3200 |
395063808 has 80 divisors (see below), whose sum is σ = 1107949920. Its totient is φ = 124747776.
The previous prime is 395063803. The next prime is 395063819. The reversal of 395063808 is 808360593.
It is a self number, because there is not a number n which added to its sum of digits gives 395063808.
It is not an unprimeable number, because it can be changed into a prime (395063803) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22416 + ... + 35952.
It is an arithmetic number, because the mean of its divisors is an integer number (13849374).
Almost surely, 2395063808 is an apocalyptic number.
395063808 is a gapful number since it is divisible by the number (38) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 395063808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553974960).
395063808 is an abundant number, since it is smaller than the sum of its proper divisors (712886112).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
395063808 is a wasteful number, since it uses less digits than its factorization.
395063808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13577 (or 13561 counting only the distinct ones).
The product of its (nonzero) digits is 155520, while the sum is 42.
The square root of 395063808 is about 19876.2121139819. The cubic root of 395063808 is about 733.7628983703.
The spelling of 395063808 in words is "three hundred ninety-five million, sixty-three thousand, eight hundred eight".
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