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231424230 = 235172271999
BaseRepresentation
bin11011100101101…
…00000011100110
3121010110120100210
431302310003212
5433221033410
634544120250
75510034132
oct1562640346
9533416323
10231424230
111096a64a4
1265606086
1338c3a61b
1422a423c2
15154b5220
hexdcb40e6

231424230 has 64 divisors (see below), whose sum is σ = 590976000. Its totient is φ = 57798144.

The previous prime is 231424187. The next prime is 231424243. The reversal of 231424230 is 32424132.

231424230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231424197 and 231424206.

It is a congruent number.

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, 114771 + ... + 116769.

It is an arithmetic number, because the mean of its divisors is an integer number (9234000).

Almost surely, 2231424230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231424230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295488000).

231424230 is an abundant number, since it is smaller than the sum of its proper divisors (359551770).

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

231424230 is a wasteful number, since it uses less digits than its factorization.

231424230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253.

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

The square root of 231424230 is about 15212.6338942341. The cubic root of 231424230 is about 613.9546256969.

Adding to 231424230 its reverse (32424132), we get a palindrome (263848362).

It can be divided in two parts, 23142 and 4230, that added together give a palindrome (27372).

The spelling of 231424230 in words is "two hundred thirty-one million, four hundred twenty-four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 227 255 454 510 681 1135 1362 1999 2270 3405 3859 3998 5997 6810 7718 9995 11577 11994 19295 19990 23154 29985 33983 38590 57885 59970 67966 101949 115770 169915 203898 339830 453773 509745 907546 1019490 1361319 2268865 2722638 4537730 6806595 7714141 13613190 15428282 23142423 38570705 46284846 77141410 115712115 231424230