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230618677 = 2310026899
BaseRepresentation
bin11011011111011…
…11011000110101
3121001221122100111
431233233120311
5433014244202
634514543021
75500140442
oct1557573065
9531848314
10230618677
111091a6253
1265297a71
1338a17a73
14228b29c9
15153a66d7
hexdbef635

230618677 has 4 divisors (see below), whose sum is σ = 240645600. Its totient is φ = 220591756.

The previous prime is 230618671. The next prime is 230618747. The reversal of 230618677 is 776816032.

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 230618677 - 211 = 230616629 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230618671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5013427 + ... + 5013472.

It is an arithmetic number, because the mean of its divisors is an integer number (60161400).

Almost surely, 2230618677 is an apocalyptic number.

It is an amenable number.

230618677 is a deficient number, since it is larger than the sum of its proper divisors (10026923).

230618677 is a wasteful number, since it uses less digits than its factorization.

230618677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10026922.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 230618677 is about 15186.1343665859. The cubic root of 230618677 is about 613.2414362617.

The spelling of 230618677 in words is "two hundred thirty million, six hundred eighteen thousand, six hundred seventy-seven".

Divisors: 1 23 10026899 230618677