Search a number
-
+
1930493417 is a prime number
BaseRepresentation
bin111001100010000…
…1111110111101001
311222112120020010012
41303010033313221
512423201242132
6515321101305
765560631456
oct16304176751
94875506105
101930493417
11900793306
1245a627835
13249c4c2c8
1414456482d
15b47330b2
hex7310fde9

1930493417 has 2 divisors, whose sum is σ = 1930493418. Its totient is φ = 1930493416.

The previous prime is 1930493401. The next prime is 1930493419. The reversal of 1930493417 is 7143940391.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1317980416 + 612513001 = 36304^2 + 24749^2 .

It is a cyclic number.

It is not a de Polignac number, because 1930493417 - 24 = 1930493401 is a prime.

Together with 1930493419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1930493419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965246708 + 965246709.

It is an arithmetic number, because the mean of its divisors is an integer number (965246709).

Almost surely, 21930493417 is an apocalyptic number.

It is an amenable number.

1930493417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930493417 is an equidigital number, since it uses as much as digits as its factorization.

1930493417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 1930493417 is about 43937.3806342618. The cubic root of 1930493417 is about 1245.1531597622.

The spelling of 1930493417 in words is "one billion, nine hundred thirty million, four hundred ninety-three thousand, four hundred seventeen".