Search a number
-
+
1945930627 is a prime number
BaseRepresentation
bin111001111111100…
…1000101110000011
312000121121111222201
41303333020232003
512441124240002
6521032014031
766136065064
oct16377105603
95017544881
101945930627
11909477533
12463831317
132501c5954
1414662256b
15b5c82087
hex73fc8b83

1945930627 has 2 divisors, whose sum is σ = 1945930628. Its totient is φ = 1945930626.

The previous prime is 1945930579. The next prime is 1945930631. The reversal of 1945930627 is 7260395491.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1945930627 is a prime.

It is a super-2 number, since 2×19459306272 = 7573292010193226258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1945939627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972965313 + 972965314.

It is an arithmetic number, because the mean of its divisors is an integer number (972965314).

Almost surely, 21945930627 is an apocalyptic number.

1945930627 is a deficient number, since it is larger than the sum of its proper divisors (1).

1945930627 is an equidigital number, since it uses as much as digits as its factorization.

1945930627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 1945930627 is about 44112.7036917938. The cubic root of 1945930627 is about 1248.4633120730.

It can be divided in two parts, 19459 and 30627, that added together give a triangular number (50086 = T316).

The spelling of 1945930627 in words is "one billion, nine hundred forty-five million, nine hundred thirty thousand, six hundred twenty-seven".