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230203320 = 23352383407
BaseRepresentation
bin11011011100010…
…01111110111000
3121001011112120220
431232021332320
5432413001240
634502020040
75463460464
oct1556117670
9531145526
10230203320
11108a42186
1265117620
13389009a9
14228054a4
15153235d0
hexdb89fb8

230203320 has 64 divisors (see below), whose sum is σ = 720645120. Its totient is φ = 58717824.

The previous prime is 230203289. The next prime is 230203339. The reversal of 230203320 is 23302032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 230203320.

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 15 ways as a sum of consecutive naturals, for example, 38944 + ... + 44463.

It is an arithmetic number, because the mean of its divisors is an integer number (11260080).

Almost surely, 2230203320 is an apocalyptic number.

230203320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230203320 is an abundant number, since it is smaller than the sum of its proper divisors (490441800).

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

230203320 is a wasteful number, since it uses less digits than its factorization.

230203320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83444 (or 83440 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 230203320 is about 15172.4526692292. The cubic root of 230203320 is about 612.8730544264.

Adding to 230203320 its reverse (23302032), we get a palindrome (253505352).

The spelling of 230203320 in words is "two hundred thirty million, two hundred three thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 23 24 30 40 46 60 69 92 115 120 138 184 230 276 345 460 552 690 920 1380 2760 83407 166814 250221 333628 417035 500442 667256 834070 1000884 1251105 1668140 1918361 2001768 2502210 3336280 3836722 5004420 5755083 7673444 9591805 10008840 11510166 15346888 19183610 23020332 28775415 38367220 46040664 57550830 76734440 115101660 230203320