Base | Representation |
---|---|
bin | 11100011000011… |
… | …01101110101001 |
3 | 121120222212110100 |
4 | 32030031232221 |
5 | 441422123420 |
6 | 35342540013 |
7 | 5620446330 |
oct | 1614155651 |
9 | 546885410 |
10 | 238082985 |
11 | 1124342a8 |
12 | 67897609 |
13 | 3a42c40a |
14 | 23896d17 |
15 | 15d7d190 |
hex | e30dba9 |
238082985 has 48 divisors (see below), whose sum is σ = 473541120. Its totient is φ = 108397440.
The previous prime is 238082983. The next prime is 238082987. The reversal of 238082985 is 589280832.
It is an interprime number because it is at equal distance from previous prime (238082983) and next prime (238082987).
It is not a de Polignac number, because 238082985 - 21 = 238082983 is a prime.
It is a super-3 number, since 3×2380829853 (a number of 26 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 238082985.
It is not an unprimeable number, because it can be changed into a prime (238082983) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83971 + ... + 86759.
It is an arithmetic number, because the mean of its divisors is an integer number (9865440).
Almost surely, 2238082985 is an apocalyptic number.
It is an amenable number.
238082985 is a deficient number, since it is larger than the sum of its proper divisors (235458135).
238082985 is a wasteful number, since it uses less digits than its factorization.
238082985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3078 (or 3075 counting only the distinct ones).
The product of its (nonzero) digits is 276480, while the sum is 45.
The square root of 238082985 is about 15429.9379454358. The cubic root of 238082985 is about 619.7874618356.
The spelling of 238082985 in words is "two hundred thirty-eight million, eighty-two thousand, nine hundred eighty-five".
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