[go: up one dir, main page]

Search a number
-
+
238506912 = 25327216901
BaseRepresentation
bin11100011011101…
…01001110100000
3121121210101222100
432031311032200
5442024210122
635400010400
75624163300
oct1615651640
9547711870
10238506912
111126a3856
1267a60a00
133a54a367
1423967600
1515e13aac
hexe3753a0

238506912 has 108 divisors (see below), whose sum is σ = 789036066. Its totient is φ = 68140800.

The previous prime is 238506911. The next prime is 238506937. The reversal of 238506912 is 219605832.

238506912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 121088016 + 117418896 = 11004^2 + 10836^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (238506911) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5662 + ... + 22562.

Almost surely, 2238506912 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 238506912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394518033).

238506912 is an abundant number, since it is smaller than the sum of its proper divisors (550529154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238506912 is a wasteful number, since it uses less digits than its factorization.

238506912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16931 (or 16913 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 238506912 is about 15443.6689941218. The cubic root of 238506912 is about 620.1551051415.

The spelling of 238506912 in words is "two hundred thirty-eight million, five hundred six thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 49 56 63 72 84 96 98 112 126 144 147 168 196 224 252 288 294 336 392 441 504 588 672 784 882 1008 1176 1568 1764 2016 2352 3528 4704 7056 14112 16901 33802 50703 67604 101406 118307 135208 152109 202812 236614 270416 304218 354921 405624 473228 540832 608436 709842 811248 828149 946456 1064763 1216872 1419684 1622496 1656298 1892912 2129526 2433744 2484447 2839368 3312596 3785824 4259052 4867488 4968894 5678736 6625192 7453341 8518104 9937788 11357472 13250384 14906682 17036208 19875576 26500768 29813364 34072416 39751152 59626728 79502304 119253456 238506912