Base | Representation |
---|---|
bin | 10111000101110… |
… | …111001000000000 |
3 | 222222222121000101 |
4 | 113011313020000 |
5 | 1243134144410 |
6 | 102235332144 |
7 | 12412644310 |
oct | 2705671000 |
9 | 888877011 |
10 | 387412480 |
11 | 189758804 |
12 | a98b1054 |
13 | 62355070 |
14 | 39649440 |
15 | 24028d3a |
hex | 17177200 |
387412480 has 160 divisors (see below), whose sum is σ = 1143926784. Its totient is φ = 122535936.
The previous prime is 387412463. The next prime is 387412481. The reversal of 387412480 is 84214783.
It is a tau number, because it is divible by the number of its divisors (160).
It is not an unprimeable number, because it can be changed into a prime (387412481) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232129 + ... + 233791.
Almost surely, 2387412480 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 387412480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571963392).
387412480 is an abundant number, since it is smaller than the sum of its proper divisors (756514304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
387412480 is a wasteful number, since it uses less digits than its factorization.
387412480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1706 (or 1690 counting only the distinct ones).
The product of its (nonzero) digits is 43008, while the sum is 37.
The square root of 387412480 is about 19682.7965492711. The cubic root of 387412480 is about 728.9949765166.
The spelling of 387412480 in words is "three hundred eighty-seven million, four hundred twelve thousand, four hundred eighty".
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