Search a number
-
+
231222023202 = 23315472272631
BaseRepresentation
bin1101011101010111101…
…0000001010000100010
3211002211021000210120010
43113111322001100202
512242020314220302
6254115534225350
722463616524502
oct3272572012042
9732737023503
10231222023202
118a073893365
123898b955256
1318a5b919a11
14b29694da02
1560344d916c
hex35d5e81422

231222023202 has 32 divisors (see below), whose sum is σ = 478234497024. Its totient is φ = 74451358800.

The previous prime is 231222023147. The next prime is 231222023209. The reversal of 231222023202 is 202320222132.

It is not an unprimeable number, because it can be changed into a prime (231222023209) 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 15 ways as a sum of consecutive naturals, for example, 1034574 + ... + 1238057.

It is an arithmetic number, because the mean of its divisors is an integer number (14944828032).

Almost surely, 2231222023202 is an apocalyptic number.

231222023202 is an abundant number, since it is smaller than the sum of its proper divisors (247012473822).

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

231222023202 is a wasteful number, since it uses less digits than its factorization.

231222023202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273214.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 231222023202 its reverse (202320222132), we get a palindrome (433542245334).

The spelling of 231222023202 in words is "two hundred thirty-one billion, two hundred twenty-two million, twenty-three thousand, two hundred two".

Divisors: 1 2 3 6 31 62 93 186 547 1094 1641 3282 16957 33914 50871 101742 2272631 4545262 6817893 13635786 70451561 140903122 211354683 422709366 1243129157 2486258314 3729387471 7458774942 38537003867 77074007734 115611011601 231222023202