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230020541 is a prime number
BaseRepresentation
bin11011011010111…
…01010110111101
3121000211020212022
431231131112331
5432341124131
634454045525
75462066552
oct1555352675
9530736768
10230020541
11108927923
12650498a5
133886873a
1422798a29
15152d937b
hexdb5d5bd

230020541 has 2 divisors, whose sum is σ = 230020542. Its totient is φ = 230020540.

The previous prime is 230020513. The next prime is 230020561. The reversal of 230020541 is 145020032.

230020541 is nontrivially palindromic in base 16.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185531641 + 44488900 = 13621^2 + 6670^2 .

It is a cyclic number.

It is not a de Polignac number, because 230020541 - 214 = 230004157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230020561) 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 as a sum of consecutive naturals, namely, 115010270 + 115010271.

It is an arithmetic number, because the mean of its divisors is an integer number (115010271).

Almost surely, 2230020541 is an apocalyptic number.

It is an amenable number.

230020541 is a deficient number, since it is larger than the sum of its proper divisors (1).

230020541 is an equidigital number, since it uses as much as digits as its factorization.

230020541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 230020541 is about 15166.4280896986. The cubic root of 230020541 is about 612.7108065712.

Adding to 230020541 its reverse (145020032), we get a palindrome (375040573).

The spelling of 230020541 in words is "two hundred thirty million, twenty thousand, five hundred forty-one".