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230023331 = 2910877297
BaseRepresentation
bin11011011010111…
…10000010100011
3121000211101200122
431231132002203
5432341221311
634454110455
75462110646
oct1555360243
9530741618
10230023331
11108929a2a
126504b42b
1338869aa5
1422799a5d
15152da0db
hexdb5e0a3

230023331 has 8 divisors (see below), whose sum is σ = 238206720. Its totient is φ = 221856768.

The previous prime is 230023319. The next prime is 230023333. The reversal of 230023331 is 133320032.

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 230023331 - 26 = 230023267 is a prime.

It is a super-2 number, since 2×2300233312 = 105821465608671122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230023333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27875 + ... + 35171.

It is an arithmetic number, because the mean of its divisors is an integer number (29775840).

Almost surely, 2230023331 is an apocalyptic number.

230023331 is a deficient number, since it is larger than the sum of its proper divisors (8183389).

230023331 is a wasteful number, since it uses less digits than its factorization.

230023331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8413.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 230023331 is about 15166.5200688886. The cubic root of 230023331 is about 612.7132838228.

Adding to 230023331 its reverse (133320032), we get a palindrome (363343363).

The spelling of 230023331 in words is "two hundred thirty million, twenty-three thousand, three hundred thirty-one".

Divisors: 1 29 1087 7297 31523 211613 7931839 230023331