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230305206 = 23299912799
BaseRepresentation
bin11011011101000…
…10110110110110
3121001100201100110
431232202312312
5432424231311
634504123450
75464363515
oct1556426666
9531321313
10230305206
1110900178a
1265166586
1338938191
142283067c
15153438a6
hexdba2db6

230305206 has 16 divisors (see below), whose sum is σ = 460800000. Its totient is φ = 76736808.

The previous prime is 230305199. The next prime is 230305223. The reversal of 230305206 is 602503032.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11595 + ... + 24393.

It is an arithmetic number, because the mean of its divisors is an integer number (28800000).

Almost surely, 2230305206 is an apocalyptic number.

230305206 is an abundant number, since it is smaller than the sum of its proper divisors (230494794).

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

230305206 is a wasteful number, since it uses less digits than its factorization.

230305206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15803.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 230305206 is about 15175.8098960154. The cubic root of 230305206 is about 612.9634585295.

Adding to 230305206 its reverse (602503032), we get a palindrome (832808238).

The spelling of 230305206 in words is "two hundred thirty million, three hundred five thousand, two hundred six".

Divisors: 1 2 3 6 2999 5998 8997 12799 17994 25598 38397 76794 38384201 76768402 115152603 230305206