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230403136 = 267974517
BaseRepresentation
bin11011011101110…
…10110001000000
3121001112200200111
431232322301000
5432440400021
634510201104
75465252155
oct1556726100
9531480614
10230403136
11109069317
12651b3194
1338970922
142285822c
15153628e1
hexdbbac40

230403136 has 28 divisors (see below), whose sum is σ = 457881228. Its totient is φ = 115031552.

The previous prime is 230403133. The next prime is 230403143. The reversal of 230403136 is 631304032.

230403136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 37748736 + 192654400 = 6144^2 + 13880^2 .

It is not an unprimeable number, because it can be changed into a prime (230403133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48750 + ... + 53266.

It is an arithmetic number, because the mean of its divisors is an integer number (16352901).

Almost surely, 2230403136 is an apocalyptic number.

It is an amenable number.

230403136 is a deficient number, since it is larger than the sum of its proper divisors (227478092).

230403136 is an equidigital number, since it uses as much as digits as its factorization.

230403136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326 (or 5316 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 230403136 is about 15179.0360695269. The cubic root of 230403136 is about 613.0503273216.

Adding to 230403136 its reverse (631304032), we get a palindrome (861707168).

The spelling of 230403136 in words is "two hundred thirty million, four hundred three thousand, one hundred thirty-six".

Divisors: 1 2 4 8 16 32 64 797 1594 3188 4517 6376 9034 12752 18068 25504 36136 51008 72272 144544 289088 3600049 7200098 14400196 28800392 57600784 115201568 230403136