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230305636 = 22115234219
BaseRepresentation
bin11011011101000…
…10111101100100
3121001100201221101
431232202331210
5432424240021
634504125444
75464365001
oct1556427544
9531321841
10230305636
11109002040
1265166884
1338938432
14228308a8
1515343a91
hexdba2f64

230305636 has 12 divisors (see below), whose sum is σ = 439674480. Its totient is φ = 104684360.

The previous prime is 230305609. The next prime is 230305637. The reversal of 230305636 is 636503032.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (230305637) 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, 2617066 + ... + 2617153.

It is an arithmetic number, because the mean of its divisors is an integer number (36639540).

Almost surely, 2230305636 is an apocalyptic number.

It is an amenable number.

230305636 is a deficient number, since it is larger than the sum of its proper divisors (209368844).

230305636 is a wasteful number, since it uses less digits than its factorization.

230305636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5234234 (or 5234232 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 28.

The square root of 230305636 is about 15175.8240632922. The cubic root of 230305636 is about 612.9638400147.

Adding to 230305636 its reverse (636503032), we get a palindrome (866808668).

The spelling of 230305636 in words is "two hundred thirty million, three hundred five thousand, six hundred thirty-six".

Divisors: 1 2 4 11 22 44 5234219 10468438 20936876 57576409 115152818 230305636