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230231322 = 236198311
BaseRepresentation
bin11011011100100…
…00110100011010
3121001012222000000
431232100310122
5432414400242
634502353430
75463635226
oct1556206432
9531188000
10230231322
11108a61222
126512b876
1338910669
1422811786
151532ba4c
hexdb90d1a

230231322 has 56 divisors (see below), whose sum is σ = 545100960. Its totient is φ = 72695880.

The previous prime is 230231299. The next prime is 230231347. The reversal of 230231322 is 223132032.

It is a happy number.

230231322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 230231295 and 230231304.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 23547 + ... + 31857.

Almost surely, 2230231322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230231322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272550480).

230231322 is an abundant number, since it is smaller than the sum of its proper divisors (314869638).

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

230231322 is an equidigital number, since it uses as much as digits as its factorization.

230231322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8350 (or 8335 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 230231322 is about 15173.3754319861. The cubic root of 230231322 is about 612.8979034388.

Adding to 230231322 its reverse (223132032), we get a palindrome (453363354).

The spelling of 230231322 in words is "two hundred thirty million, two hundred thirty-one thousand, three hundred twenty-two".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 81 114 162 171 243 342 486 513 729 1026 1458 1539 3078 4617 8311 9234 13851 16622 24933 27702 49866 74799 149598 157909 224397 315818 448794 473727 673191 947454 1346382 1421181 2019573 2842362 4039146 4263543 6058719 8527086 12117438 12790629 25581258 38371887 76743774 115115661 230231322