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230403421 = 7997107281
BaseRepresentation
bin11011011101110…
…10110101011101
3121001112201002001
431232322311131
5432440402141
634510202301
75465253043
oct1556726535
9531481061
10230403421
11109069556
12651b3391
1338970ab1
1422858393
1515362a31
hexdbbad5d

230403421 has 16 divisors (see below), whose sum is σ = 238775040. Its totient is φ = 222243840.

The previous prime is 230403413. The next prime is 230403451. The reversal of 230403421 is 124304032.

It is a cyclic number.

It is not a de Polignac number, because 230403421 - 23 = 230403413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230403401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 819801 + ... + 820081.

It is an arithmetic number, because the mean of its divisors is an integer number (14923440).

Almost surely, 2230403421 is an apocalyptic number.

It is an amenable number.

230403421 is a deficient number, since it is larger than the sum of its proper divisors (8371619).

230403421 is a wasteful number, since it uses less digits than its factorization.

230403421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 230403421 is about 15179.0454574720. The cubic root of 230403421 is about 613.0505800949.

Adding to 230403421 its reverse (124304032), we get a palindrome (354707453).

It can be divided in two parts, 230 and 403421, that added together give a triangular number (403651 = T898).

The spelling of 230403421 in words is "two hundred thirty million, four hundred three thousand, four hundred twenty-one".

Divisors: 1 79 97 107 281 7663 8453 10379 22199 27257 30067 819941 2153303 2375293 2916499 230403421