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230032523 = 747699187
BaseRepresentation
bin11011011011000…
…00010010001011
3121000211212022002
431231200102023
5432342020043
634454221215
75462146520
oct1555402213
9530755262
10230032523
11108935926
126505480b
1338871026
142279d147
15152dcbb8
hexdb6048b

230032523 has 8 divisors (see below), whose sum is σ = 268488192. Its totient is φ = 192975336.

The previous prime is 230032483. The next prime is 230032529. The reversal of 230032523 is 325230032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230032523 - 26 = 230032459 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230032495 and 230032504.

It is not an unprimeable number, because it can be changed into a prime (230032529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349265 + ... + 349922.

It is an arithmetic number, because the mean of its divisors is an integer number (33561024).

Almost surely, 2230032523 is an apocalyptic number.

230032523 is a deficient number, since it is larger than the sum of its proper divisors (38455669).

230032523 is an equidigital number, since it uses as much as digits as its factorization.

230032523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699241.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 230032523 is about 15166.8231017573. The cubic root of 230032523 is about 612.7214452927.

Adding to 230032523 its reverse (325230032), we get a palindrome (555262555).

The spelling of 230032523 in words is "two hundred thirty million, thirty-two thousand, five hundred twenty-three".

Divisors: 1 7 47 329 699187 4894309 32861789 230032523