Search a number
-
+
230220341 = 13172294549
BaseRepresentation
bin11011011100011…
…10001000110101
3121001012101221022
431232032020311
5432414022331
634502230525
75463561221
oct1556161065
9531171838
10230220341
11108a53a4a
1265125445
1338908670
142280b781
151532867b
hexdb8e235

230220341 has 16 divisors (see below), whose sum is σ = 263718000. Its totient is φ = 199093248.

The previous prime is 230220281. The next prime is 230220349. The reversal of 230220341 is 143022032.

It can be written as a sum of positive squares in 8 ways, for example, as 24900100 + 205320241 = 4990^2 + 14329^2 .

It is a cyclic number.

It is not a de Polignac number, because 230220341 - 226 = 163111477 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230220349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48335 + ... + 52883.

It is an arithmetic number, because the mean of its divisors is an integer number (16482375).

Almost surely, 2230220341 is an apocalyptic number.

It is an amenable number.

230220341 is a deficient number, since it is larger than the sum of its proper divisors (33497659).

230220341 is a wasteful number, since it uses less digits than its factorization.

230220341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4808.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 230220341 is about 15173.0135767421. The cubic root of 230220341 is about 612.8881591248. Note that the first 3 decimals are identical.

Adding to 230220341 its reverse (143022032), we get a palindrome (373242373).

The spelling of 230220341 in words is "two hundred thirty million, two hundred twenty thousand, three hundred forty-one".

Divisors: 1 13 17 221 229 2977 3893 4549 50609 59137 77333 1005329 1041721 13542373 17709257 230220341