Search a number
-
+
38749147 is a prime number
BaseRepresentation
bin1001001111010…
…0001111011011
32200220122211121
42103310033123
534404433042
63502310111
7650235163
oct223641733
980818747
1038749147
111a966898
1210b88337
1380493b8
1452095a3
153606367
hex24f43db

38749147 has 2 divisors, whose sum is σ = 38749148. Its totient is φ = 38749146.

The previous prime is 38749111. The next prime is 38749159. The reversal of 38749147 is 74194783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38749147 - 27 = 38749019 is a prime.

It is not a weakly prime, because it can be changed into another prime (38749247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19374573 + 19374574.

It is an arithmetic number, because the mean of its divisors is an integer number (19374574).

Almost surely, 238749147 is an apocalyptic number.

38749147 is a deficient number, since it is larger than the sum of its proper divisors (1).

38749147 is an equidigital number, since it uses as much as digits as its factorization.

38749147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The square root of 38749147 is about 6224.8812840086. The cubic root of 38749147 is about 338.3924895685.

The spelling of 38749147 in words is "thirty-eight million, seven hundred forty-nine thousand, one hundred forty-seven".