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230524873 = 510745139
BaseRepresentation
bin11011011110110…
…00011111001001
3121001202212200021
431233120133021
5433003243443
634512540441
75466300115
oct1557303711
9531685607
10230524873
11109141827
1265251721
13389b4167
142288a745
15153889ed
hexdbd87c9

230524873 has 4 divisors (see below), whose sum is σ = 230575120. Its totient is φ = 230474628.

The previous prime is 230524871. The next prime is 230524909. The reversal of 230524873 is 378425032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230524873 - 21 = 230524871 is a prime.

It is a super-2 number, since 2×2305248732 = 106283434143332258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230524871) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17463 + ... + 27676.

It is an arithmetic number, because the mean of its divisors is an integer number (57643780).

Almost surely, 2230524873 is an apocalyptic number.

It is an amenable number.

230524873 is a deficient number, since it is larger than the sum of its proper divisors (50247).

230524873 is an equidigital number, since it uses as much as digits as its factorization.

230524873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50246.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 230524873 is about 15183.0455772220. The cubic root of 230524873 is about 613.1582797982.

The spelling of 230524873 in words is "two hundred thirty million, five hundred twenty-four thousand, eight hundred seventy-three".

Divisors: 1 5107 45139 230524873