Base | Representation |
---|---|
bin | 11100011000010… |
… | …10100101111000 |
3 | 121120222012211110 |
4 | 32030022211320 |
5 | 441421221021 |
6 | 35342400320 |
7 | 5620364013 |
oct | 1614124570 |
9 | 546865743 |
10 | 238070136 |
11 | 112425687 |
12 | 678900a0 |
13 | 3a426605 |
14 | 2389237a |
15 | 15d79476 |
hex | e30a978 |
238070136 has 64 divisors (see below), whose sum is σ = 616366080. Its totient is φ = 76567680.
The previous prime is 238070113. The next prime is 238070137. The reversal of 238070136 is 631070832.
It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (238070137) by changing a digit.
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, 111721 + ... + 113831.
It is an arithmetic number, because the mean of its divisors is an integer number (9630720).
Almost surely, 2238070136 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 238070136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308183040).
238070136 is an abundant number, since it is smaller than the sum of its proper divisors (378295944).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
238070136 is a wasteful number, since it uses less digits than its factorization.
238070136 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2284 (or 2280 counting only the distinct ones).
The product of its (nonzero) digits is 6048, while the sum is 30.
The square root of 238070136 is about 15429.5215739180. The cubic root of 238070136 is about 619.7763119525.
The spelling of 238070136 in words is "two hundred thirty-eight million, seventy thousand, one hundred thirty-six".
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