Search a number
-
+
38974511 is a prime number
BaseRepresentation
bin1001010010101…
…1010000101111
32201100002222102
42110223100233
534434141021
63511205315
7652164212
oct224532057
981302872
1038974511
1120000144
121107683b
1380c7b54
145267779
15364d00b
hex252b42f

38974511 has 2 divisors, whose sum is σ = 38974512. Its totient is φ = 38974510.

The previous prime is 38974501. The next prime is 38974513. The reversal of 38974511 is 11547983.

38974511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38974511 is a prime.

It is a Sophie Germain prime.

Together with 38974513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38974513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19487255 + 19487256.

It is an arithmetic number, because the mean of its divisors is an integer number (19487256).

Almost surely, 238974511 is an apocalyptic number.

38974511 is a deficient number, since it is larger than the sum of its proper divisors (1).

38974511 is an equidigital number, since it uses as much as digits as its factorization.

38974511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 38974511 is about 6242.9569115925. The cubic root of 38974511 is about 339.0472490652.

The spelling of 38974511 in words is "thirty-eight million, nine hundred seventy-four thousand, five hundred eleven".