Search a number
-
+
231101130 = 235131015867
BaseRepresentation
bin11011100011001…
…01001011001010
3121002212011011010
431301211023022
5433130214010
634533144350
75504220141
oct1561451312
9532764133
10231101130
111094a5777
126548b0b6
1338b56540
142299a758
151544e620
hexdc652ca

231101130 has 64 divisors (see below), whose sum is σ = 603324288. Its totient is φ = 56313600.

The previous prime is 231101119. The next prime is 231101141. The reversal of 231101130 is 31101132.

231101130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231101119) and next prime (231101141).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36457 + ... + 42323.

It is an arithmetic number, because the mean of its divisors is an integer number (9426942).

Almost surely, 2231101130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231101130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301662144).

231101130 is an abundant number, since it is smaller than the sum of its proper divisors (372223158).

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

231101130 is a wasteful number, since it uses less digits than its factorization.

231101130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5991.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 231101130 is about 15202.0107222696. The cubic root of 231101130 is about 613.6687709733.

Adding to 231101130 its reverse (31101132), we get a palindrome (262202262).

The spelling of 231101130 in words is "two hundred thirty-one million, one hundred one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 101 130 195 202 303 390 505 606 1010 1313 1515 2626 3030 3939 5867 6565 7878 11734 13130 17601 19695 29335 35202 39390 58670 76271 88005 152542 176010 228813 381355 457626 592567 762710 1144065 1185134 1777701 2288130 2962835 3555402 5925670 7703371 8888505 15406742 17777010 23110113 38516855 46220226 77033710 115550565 231101130