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230478041 = 1578531721
BaseRepresentation
bin11011011110011…
…01000011011001
3121001200111102202
431233031003121
5433000244131
634511535545
75466013433
oct1557150331
9531614382
10230478041
1110910a622
126522a5b5
1338998a51
1422877653
1515379bcb
hexdbcd0d9

230478041 has 8 divisors (see below), whose sum is σ = 232352904. Its totient is φ = 228608640.

The previous prime is 230478029. The next prime is 230478047. The reversal of 230478041 is 140874032.

It can be written as a sum of positive squares in 4 ways, for example, as 4426816 + 226051225 = 2104^2 + 15035^2 .

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 230478041 - 218 = 230215897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230477995 and 230478013.

It is not an unprimeable number, because it can be changed into a prime (230478047) 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, 133061 + ... + 134781.

It is an arithmetic number, because the mean of its divisors is an integer number (29044113).

Almost surely, 2230478041 is an apocalyptic number.

It is an amenable number.

230478041 is a deficient number, since it is larger than the sum of its proper divisors (1874863).

230478041 is a wasteful number, since it uses less digits than its factorization.

230478041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 230478041 is about 15181.5032523133. The cubic root of 230478041 is about 613.1167551781.

The spelling of 230478041 in words is "two hundred thirty million, four hundred seventy-eight thousand, forty-one".

Divisors: 1 157 853 1721 133921 270197 1468013 230478041