Search a number
-
+
20120104241 is a prime number
BaseRepresentation
bin10010101111010000…
…000110110100110001
31220221012112012021222
4102233100012310301
5312201221313431
613124255354425
71311411031016
oct225720066461
956835465258
1020120104241
118595302126
123a96222a15
131b8853a133
14d8c22b70d
157cb59257b
hex4af406d31

20120104241 has 2 divisors, whose sum is σ = 20120104242. Its totient is φ = 20120104240.

The previous prime is 20120104223. The next prime is 20120104297. The reversal of 20120104241 is 14240102102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16723662400 + 3396441841 = 129320^2 + 58279^2 .

It is a cyclic number.

It is not a de Polignac number, because 20120104241 - 230 = 19046362417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20120104201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060052120 + 10060052121.

It is an arithmetic number, because the mean of its divisors is an integer number (10060052121).

Almost surely, 220120104241 is an apocalyptic number.

It is an amenable number.

20120104241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120104241 is an equidigital number, since it uses as much as digits as its factorization.

20120104241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20120104241 its reverse (14240102102), we get a palindrome (34360206343).

The spelling of 20120104241 in words is "twenty billion, one hundred twenty million, one hundred four thousand, two hundred forty-one".