Search a number
-
+
231210232100 = 22527433111847
BaseRepresentation
bin1101011101010100110…
…1000010100100100100
3211002210102211202012122
43113111031002210210
512242004304411400
6254114433405112
722463414355221
oct3272515024444
9732712752178
10231210232100
118a06816a551
1238987a09798
1318a5934bb33
14b295160948
15603345a685
hex35d5342924

231210232100 has 36 divisors (see below), whose sum is σ = 502401635904. Its totient is φ = 92359589280.

The previous prime is 231210232093. The next prime is 231210232103. The reversal of 231210232100 is 1232012132.

It is not an unprimeable number, because it can be changed into a prime (231210232103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1481624 + ... + 1630223.

Almost surely, 2231210232100 is an apocalyptic number.

231210232100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231210232100 is an abundant number, since it is smaller than the sum of its proper divisors (271191403804).

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

231210232100 is a wasteful number, since it uses less digits than its factorization.

231210232100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112604 (or 3112597 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 231210232100 its reverse (1232012132), we get a palindrome (232442244232).

The spelling of 231210232100 in words is "two hundred thirty-one billion, two hundred ten million, two hundred thirty-two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 743 1486 2972 3715 7430 14860 18575 37150 74300 3111847 6223694 12447388 15559235 31118470 62236940 77796175 155592350 311184700 2312102321 4624204642 9248409284 11560511605 23121023210 46242046420 57802558025 115605116050 231210232100