Search a number
-
+
230621471 = 2231034177
BaseRepresentation
bin11011011111100…
…00000100011111
3121001221210011222
431233300010133
5433014341341
634515003555
75500151543
oct1557600437
9531853158
10230621471
111091a8363
12652995bb
1338a19112
14228b3a23
15153a744b
hexdbf011f

230621471 has 4 divisors (see below), whose sum is σ = 231655872. Its totient is φ = 229587072.

The previous prime is 230621467. The next prime is 230621491. The reversal of 230621471 is 174126032.

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 230621471 - 22 = 230621467 is a prime.

It is a super-3 number, since 3×2306214713 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230621471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230621441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516866 + ... + 517311.

It is an arithmetic number, because the mean of its divisors is an integer number (57913968).

Almost surely, 2230621471 is an apocalyptic number.

230621471 is a deficient number, since it is larger than the sum of its proper divisors (1034401).

230621471 is a wasteful number, since it uses less digits than its factorization.

230621471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034400.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 230621471 is about 15186.2263581181. The cubic root of 230621471 is about 613.2439127736.

The spelling of 230621471 in words is "two hundred thirty million, six hundred twenty-one thousand, four hundred seventy-one".

Divisors: 1 223 1034177 230621471