Search a number
-
+
1230897001 is a prime number
BaseRepresentation
bin100100101011101…
…1111111101101001
310011210011001020211
41021113133331221
510010102201001
6322050221121
742334310665
oct11127377551
93153131224
101230897001
1158189a154
122a42847a1
13168021829
14b96938a5
15730e0351
hex495dff69

1230897001 has 2 divisors, whose sum is σ = 1230897002. Its totient is φ = 1230897000.

The previous prime is 1230896987. The next prime is 1230897011. The reversal of 1230897001 is 1007980321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1205131225 + 25765776 = 34715^2 + 5076^2 .

It is an emirp because it is prime and its reverse (1007980321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230897001 - 211 = 1230894953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230897011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615448500 + 615448501.

It is an arithmetic number, because the mean of its divisors is an integer number (615448501).

Almost surely, 21230897001 is an apocalyptic number.

It is an amenable number.

1230897001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230897001 is an equidigital number, since it uses as much as digits as its factorization.

1230897001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1230897001 is about 35084.1417309872. The cubic root of 1230897001 is about 1071.7016627410.

The spelling of 1230897001 in words is "one billion, two hundred thirty million, eight hundred ninety-seven thousand, one".