Search a number
-
+
19905683041 is a prime number
BaseRepresentation
bin10010100010011110…
…001001111001100001
31220101021001110201001
4102202132021321201
5311231323324131
613051115512001
71303165341226
oct224236117141
956337043631
1019905683041
11849526a322
123a36458601
131b52ca3a9a
14d6b97394d
157b783a261
hex4a2789e61

19905683041 has 2 divisors, whose sum is σ = 19905683042. Its totient is φ = 19905683040.

The previous prime is 19905683003. The next prime is 19905683087. The reversal of 19905683041 is 14038650991.

It is an a-pointer prime, because the next prime (19905683087) can be obtained adding 19905683041 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10961252416 + 8944430625 = 104696^2 + 94575^2 .

It is a cyclic number.

It is not a de Polignac number, because 19905683041 - 27 = 19905682913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19905682982 and 19905683000.

It is not a weakly prime, because it can be changed into another prime (19905684041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9952841520 + 9952841521.

It is an arithmetic number, because the mean of its divisors is an integer number (9952841521).

Almost surely, 219905683041 is an apocalyptic number.

It is an amenable number.

19905683041 is a deficient number, since it is larger than the sum of its proper divisors (1).

19905683041 is an equidigital number, since it uses as much as digits as its factorization.

19905683041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 19905683041 in words is "nineteen billion, nine hundred five million, six hundred eighty-three thousand, forty-one".