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230403243 = 3725329573
BaseRepresentation
bin11011011101110…
…10110010101011
3121001112200211110
431232322302223
5432440400433
634510201403
75465252400
oct1556726253
9531480743
10230403243
11109069404
12651b3263
13389709a5
14228582a7
1515362963
hexdbbacab

230403243 has 24 divisors (see below), whose sum is σ = 364115088. Its totient is φ = 129170496.

The previous prime is 230403241. The next prime is 230403281. The reversal of 230403243 is 342304032.

It is not a de Polignac number, because 230403243 - 21 = 230403241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (230403241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6996 + ... + 22577.

It is an arithmetic number, because the mean of its divisors is an integer number (15171462).

Almost surely, 2230403243 is an apocalyptic number.

230403243 is a deficient number, since it is larger than the sum of its proper divisors (133711845).

230403243 is a wasteful number, since it uses less digits than its factorization.

230403243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29643 (or 29636 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 230403243 is about 15179.0395941245. The cubic root of 230403243 is about 613.0504222225.

Adding to 230403243 its reverse (342304032), we get a palindrome (572707275).

The spelling of 230403243 in words is "two hundred thirty million, four hundred three thousand, two hundred forty-three".

Divisors: 1 3 7 21 49 53 147 159 371 1113 2597 7791 29573 88719 207011 621033 1449077 1567369 4347231 4702107 10971583 32914749 76801081 230403243