Search a number
-
+
38888413 is a prime number
BaseRepresentation
bin1001010001011…
…0001111011101
32201011201212121
42110112033131
534423412123
63505302541
7651355204
oct224261735
981151777
1038888413
111aa51493
1211034a51
1380978c5
14524423b
15363275d
hex25163dd

38888413 has 2 divisors, whose sum is σ = 38888414. Its totient is φ = 38888412.

The previous prime is 38888359. The next prime is 38888417. The reversal of 38888413 is 31488883.

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., 21930489 + 16957924 = 4683^2 + 4118^2 .

It is a cyclic number.

It is not a de Polignac number, because 38888413 - 225 = 5333981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38888413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38888417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19444206 + 19444207.

It is an arithmetic number, because the mean of its divisors is an integer number (19444207).

Almost surely, 238888413 is an apocalyptic number.

It is an amenable number.

38888413 is a deficient number, since it is larger than the sum of its proper divisors (1).

38888413 is an equidigital number, since it uses as much as digits as its factorization.

38888413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 147456, while the sum is 43.

The square root of 38888413 is about 6236.0574885099. The cubic root of 38888413 is about 338.7974036229.

The spelling of 38888413 in words is "thirty-eight million, eight hundred eighty-eight thousand, four hundred thirteen".