Base | Representation |
---|---|
bin | 11100011101001… |
… | …00100111100110 |
3 | 121122011021020220 |
4 | 32032210213212 |
5 | 442101413110 |
6 | 35404105210 |
7 | 5625632241 |
oct | 1616444746 |
9 | 548137226 |
10 | 238701030 |
11 | 112816687 |
12 | 67b35206 |
13 | 3a5b7819 |
14 | 239b8258 |
15 | 15e51370 |
hex | e3a49e6 |
238701030 has 48 divisors (see below), whose sum is σ = 593380944. Its totient is φ = 61452160.
The previous prime is 238701019. The next prime is 238701031. The reversal of 238701030 is 30107832.
It is an alternating number because its digits alternate between even and odd.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (238701031) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20500 + ... + 29960.
It is an arithmetic number, because the mean of its divisors is an integer number (12362103).
Almost surely, 2238701030 is an apocalyptic number.
238701030 is the 12615-th pentagonal number.
It is a practical number, because each smaller number is the sum of distinct divisors of 238701030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296690472).
238701030 is an abundant number, since it is smaller than the sum of its proper divisors (354679914).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
238701030 is a wasteful number, since it uses less digits than its factorization.
238701030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9529 (or 9500 counting only the distinct ones).
The product of its (nonzero) digits is 1008, while the sum is 24.
The square root of 238701030 is about 15449.9524271112. The cubic root of 238701030 is about 620.3233051920.
Adding to 238701030 its reverse (30107832), we get a palindrome (268808862).
The spelling of 238701030 in words is "two hundred thirty-eight million, seven hundred one thousand, thirty".
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