Base | Representation |
---|---|
bin | 11100011000010… |
… | …10100100001110 |
3 | 121120222012200112 |
4 | 32030022210032 |
5 | 441421220110 |
6 | 35342400022 |
7 | 5620363502 |
oct | 1614124416 |
9 | 546865615 |
10 | 238070030 |
11 | 1124255a0 |
12 | 67890012 |
13 | 3a426553 |
14 | 23892302 |
15 | 15d79405 |
hex | e30a90e |
238070030 has 16 divisors (see below), whose sum is σ = 467483184. Its totient is φ = 86570880.
The previous prime is 238070017. The next prime is 238070039. The reversal of 238070030 is 30070832.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 238069978 and 238070005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (238070039) 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, 1082027 + ... + 1082246.
It is an arithmetic number, because the mean of its divisors is an integer number (29217699).
Almost surely, 2238070030 is an apocalyptic number.
238070030 is a deficient number, since it is larger than the sum of its proper divisors (229413154).
238070030 is a wasteful number, since it uses less digits than its factorization.
238070030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2164291.
The product of its (nonzero) digits is 1008, while the sum is 23.
The square root of 238070030 is about 15429.5181389439. The cubic root of 238070030 is about 619.7762199680.
The spelling of 238070030 in words is "two hundred thirty-eight million, seventy thousand, thirty".
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