Base | Representation |
---|---|
bin | 1001001001101… |
… | …1100000000110 |
3 | 2200020012020111 |
4 | 2102123200012 |
5 | 34311320140 |
6 | 3450423234 |
7 | 644162401 |
oct | 222334006 |
9 | 80205214 |
10 | 38385670 |
11 | 1a7387a4 |
12 | 10a31b1a |
13 | 7c4cb1b |
14 | 5152d38 |
15 | 35837ea |
hex | 249b806 |
38385670 has 16 divisors (see below), whose sum is σ = 70701840. Its totient is φ = 14997024.
The previous prime is 38385661. The next prime is 38385671. The reversal of 38385670 is 7658383.
It is a super-2 number, since 2×383856702 = 2946919322697800, which contains 22 as substring.
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (38385671) 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, 44205 + ... + 45064.
It is an arithmetic number, because the mean of its divisors is an integer number (4418865).
Almost surely, 238385670 is an apocalyptic number.
38385670 is a deficient number, since it is larger than the sum of its proper divisors (32316170).
38385670 is a wasteful number, since it uses less digits than its factorization.
38385670 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 89319.
The product of its (nonzero) digits is 120960, while the sum is 40.
The square root of 38385670 is about 6195.6169991374. The cubic root of 38385670 is about 337.3310942670.
The spelling of 38385670 in words is "thirty-eight million, three hundred eighty-five thousand, six hundred seventy".
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