Base | Representation |
---|---|
bin | 10111101010111… |
… | …010001001000000 |
3 | 1000200020222221020 |
4 | 113222322021000 |
5 | 1303130433120 |
6 | 103223425440 |
7 | 12561333246 |
oct | 2752721100 |
9 | 1020228836 |
10 | 397124160 |
11 | 194191294 |
12 | b0bb5280 |
13 | 64375614 |
14 | 3aa56796 |
15 | 24ce6640 |
hex | 17aba240 |
397124160 has 112 divisors (see below), whose sum is σ = 1264920000. Its totient is φ = 105560064.
The previous prime is 397124137. The next prime is 397124171. The reversal of 397124160 is 61421793.
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 15 ways as a sum of consecutive naturals, for example, 478626 + ... + 479454.
Almost surely, 2397124160 is an apocalyptic number.
397124160 is a gapful number since it is divisible by the number (30) 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 397124160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (632460000).
397124160 is an abundant number, since it is smaller than the sum of its proper divisors (867795840).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
397124160 is a wasteful number, since it uses less digits than its factorization.
397124160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1348 (or 1338 counting only the distinct ones).
The product of its (nonzero) digits is 9072, while the sum is 33.
The square root of 397124160 is about 19927.9743074905. The cubic root of 397124160 is about 735.0362701339.
The spelling of 397124160 in words is "three hundred ninety-seven million, one hundred twenty-four thousand, one hundred sixty".
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