Search a number
-
+
230134642481 is a prime number
BaseRepresentation
bin1101011001010100010…
…1111111011100110001
3211000000110221010122002
43112111011333130301
512232303432024411
6253420012023345
722424644120352
oct3262505773461
9730013833562
10230134642481
1189666008107
1238727761b55
1318917566b83
14b1d2377d29
155ebdce733b
hex359517f731

230134642481 has 2 divisors, whose sum is σ = 230134642482. Its totient is φ = 230134642480.

The previous prime is 230134642469. The next prime is 230134642519. The reversal of 230134642481 is 184246431032.

It is a happy number.

It is an a-pointer prime, because the next prime (230134642519) can be obtained adding 230134642481 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151519455025 + 78615187456 = 389255^2 + 280384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230134642481 is a prime.

It is a super-2 number, since 2×2301346424812 (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230134642781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115067321240 + 115067321241.

It is an arithmetic number, because the mean of its divisors is an integer number (115067321241).

Almost surely, 2230134642481 is an apocalyptic number.

It is an amenable number.

230134642481 is a deficient number, since it is larger than the sum of its proper divisors (1).

230134642481 is an equidigital number, since it uses as much as digits as its factorization.

230134642481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 230134642481 in words is "two hundred thirty billion, one hundred thirty-four million, six hundred forty-two thousand, four hundred eighty-one".