Search a number
-
+
230002545 = 3537834993
BaseRepresentation
bin11011011010110…
…00111101110001
3121000210100011210
431231120331301
5432340040140
634453430333
75461663233
oct1555307561
9530710153
10230002545
11108915353
126503b3a9
13388604a6
1422792253
15152d3d80
hexdb58f71

230002545 has 32 divisors (see below), whose sum is σ = 382580352. Its totient is φ = 117891072.

The previous prime is 230002541. The next prime is 230002601. The reversal of 230002545 is 545200032.

It is not a de Polignac number, because 230002545 - 22 = 230002541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230002541) 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 31 ways as a sum of consecutive naturals, for example, 43569 + ... + 48561.

It is an arithmetic number, because the mean of its divisors is an integer number (11955636).

Almost surely, 2230002545 is an apocalyptic number.

It is an amenable number.

230002545 is a deficient number, since it is larger than the sum of its proper divisors (152577807).

230002545 is a wasteful number, since it uses less digits than its factorization.

230002545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 230002545 is about 15165.8347940362. The cubic root of 230002545 is about 612.6948273733.

Adding to 230002545 its reverse (545200032), we get a palindrome (775202577).

The spelling of 230002545 in words is "two hundred thirty million, two thousand, five hundred forty-five".

Divisors: 1 3 5 15 37 83 111 185 249 415 555 1245 3071 4993 9213 14979 15355 24965 46065 74895 184741 414419 554223 923705 1243257 2072095 2771115 6216285 15333503 46000509 76667515 230002545