Search a number
-
+
230433220431 = 3235372531703
BaseRepresentation
bin1101011010011011100…
…0111110011101001111
3211000210021202110120200
43112212320332131033
512233411401023211
6253505355344543
722435231025121
oct3264670763517
9730707673520
10230433220431
11897a9600147
12387ab752153
131896438760b
14b21dc9b211
155eda124b56
hex35a6e3e74f

230433220431 has 12 divisors (see below), whose sum is σ = 333790901808. Its totient is φ = 153186954624.

The previous prime is 230433220417. The next prime is 230433220439. The reversal of 230433220431 is 134022334032.

230433220431 is a `hidden beast` number, since 2 + 3 + 0 + 4 + 3 + 3 + 220 + 431 = 666.

It is not a de Polignac number, because 230433220431 - 214 = 230433204047 is a prime.

It is a super-2 number, since 2×2304332204312 (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230433220395 and 230433220404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230433220439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36262675 + ... + 36269028.

It is an arithmetic number, because the mean of its divisors is an integer number (27815908484).

Almost surely, 2230433220431 is an apocalyptic number.

230433220431 is a deficient number, since it is larger than the sum of its proper divisors (103357681377).

230433220431 is a wasteful number, since it uses less digits than its factorization.

230433220431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72532062 (or 72532059 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 230433220431 its reverse (134022334032), we get a palindrome (364455554463).

The spelling of 230433220431 in words is "two hundred thirty billion, four hundred thirty-three million, two hundred twenty thousand, four hundred thirty-one".

Divisors: 1 3 9 353 1059 3177 72531703 217595109 652785327 25603691159 76811073477 230433220431