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230551331 = 1713561843
BaseRepresentation
bin11011011110111…
…10111100100011
3121001211012222012
431233132330203
5433010120311
634513303135
75466440213
oct1557367443
9531735865
10230551331
1110915a69a
1265264aab
13389c320a
1422896243
151539178b
hexdbdef23

230551331 has 4 divisors (see below), whose sum is σ = 244113192. Its totient is φ = 216989472.

The previous prime is 230551319. The next prime is 230551351. The reversal of 230551331 is 133155032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230551331 - 226 = 163442467 is a prime.

It is a super-2 number, since 2×2305513312 = 106307832451743122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230551297 and 230551306.

It is not an unprimeable number, because it can be changed into a prime (230551351) 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, 6780905 + ... + 6780938.

It is an arithmetic number, because the mean of its divisors is an integer number (61028298).

Almost surely, 2230551331 is an apocalyptic number.

230551331 is a deficient number, since it is larger than the sum of its proper divisors (13561861).

230551331 is a wasteful number, since it uses less digits than its factorization.

230551331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13561860.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 230551331 is about 15183.9168530389. The cubic root of 230551331 is about 613.1817368782.

The spelling of 230551331 in words is "two hundred thirty million, five hundred fifty-one thousand, three hundred thirty-one".

Divisors: 1 17 13561843 230551331