Search a number
-
+
203012023230 = 23252255689147
BaseRepresentation
bin1011110100010001110…
…1011010001110111110
3201102000020221022121100
42331010131122032332
511311232034220410
6233132404113530
720444553503562
oct2750435321676
9642006838540
10203012023230
1179107aa38a5
12334183958a6
13161b4353143
149b7c1376a2
155432ae08c0
hex2f4475a3be

203012023230 has 24 divisors (see below), whose sum is σ = 527831260632. Its totient is φ = 54136539504.

The previous prime is 203012023229. The next prime is 203012023237. The reversal of 203012023230 is 32320210302.

It is a happy number.

203012023230 is a `hidden beast` number, since 20 + 301 + 20 + 2 + 323 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203012023237) 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, 1127844484 + ... + 1127844663.

It is an arithmetic number, because the mean of its divisors is an integer number (21992969193).

Almost surely, 2203012023230 is an apocalyptic number.

203012023230 is an abundant number, since it is smaller than the sum of its proper divisors (324819237402).

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

203012023230 is a wasteful number, since it uses less digits than its factorization.

203012023230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255689160 (or 2255689157 counting only the distinct ones).

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

Adding to 203012023230 its reverse (32320210302), we get a palindrome (235332233532).

The spelling of 203012023230 in words is "two hundred three billion, twelve million, twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 2255689147 4511378294 6767067441 11278445735 13534134882 20301202323 22556891470 33835337205 40602404646 67670674410 101506011615 203012023230