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230215520 = 2551438847
BaseRepresentation
bin11011011100011…
…00111101100000
3121001012011022202
431232030331200
5432413344040
634502152332
75463541163
oct1556147540
9531164282
10230215520
11108a50367
12651226a8
1338906402
1422809ada
1515327015
hexdb8cf60

230215520 has 24 divisors (see below), whose sum is σ = 543884544. Its totient is φ = 92086144.

The previous prime is 230215511. The next prime is 230215549. The reversal of 230215520 is 25512032.

230215520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 230215492 and 230215501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719264 + ... + 719583.

It is an arithmetic number, because the mean of its divisors is an integer number (22661856).

Almost surely, 2230215520 is an apocalyptic number.

230215520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230215520 is an abundant number, since it is smaller than the sum of its proper divisors (313669024).

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

230215520 is a wasteful number, since it uses less digits than its factorization.

230215520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438862 (or 1438854 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 230215520 is about 15172.8547083270. The cubic root of 230215520 is about 612.8838809705.

Adding to 230215520 its reverse (25512032), we get a palindrome (255727552).

The spelling of 230215520 in words is "two hundred thirty million, two hundred fifteen thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 1438847 2877694 5755388 7194235 11510776 14388470 23021552 28776940 46043104 57553880 115107760 230215520