Search a number
-
+
231341344 = 25133117939
BaseRepresentation
bin11011100100111…
…11110100100000
3121010022100122221
431302133310200
5433210410334
634542240424
75506240363
oct1562376440
9533270587
10231341344
1110964a1a3
1265586114
1338c0b990
1422a200da
151549a8b4
hexdc9fd20

231341344 has 48 divisors (see below), whose sum is σ = 506338560. Its totient is φ = 103322880.

The previous prime is 231341339. The next prime is 231341347. The reversal of 231341344 is 443143132.

It is not an unprimeable number, because it can be changed into a prime (231341347) 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, 3927 + ... + 21865.

It is an arithmetic number, because the mean of its divisors is an integer number (10548720).

Almost surely, 2231341344 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 231341344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253169280).

231341344 is an abundant number, since it is smaller than the sum of its proper divisors (274997216).

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

231341344 is a wasteful number, since it uses less digits than its factorization.

231341344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17993 (or 17985 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 231341344 is about 15209.9094014396. The cubic root of 231341344 is about 613.8813197462.

Adding to 231341344 its reverse (443143132), we get a palindrome (674484476).

The spelling of 231341344 in words is "two hundred thirty-one million, three hundred forty-one thousand, three hundred forty-four".

Divisors: 1 2 4 8 13 16 26 31 32 52 62 104 124 208 248 403 416 496 806 992 1612 3224 6448 12896 17939 35878 71756 143512 233207 287024 466414 556109 574048 932828 1112218 1865656 2224436 3731312 4448872 7229417 7462624 8897744 14458834 17795488 28917668 57835336 115670672 231341344