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38788369 is a prime number
BaseRepresentation
bin1001001111110…
…1110100010001
32200222122122021
42103331310101
534412211434
63503211441
7650460424
oct223756421
980878567
1038788369
111a993304
1210ba6b81
1380611c9
1452199bb
153612cb4
hex24fdd11

38788369 has 2 divisors, whose sum is σ = 38788370. Its totient is φ = 38788368.

The previous prime is 38788319. The next prime is 38788381. The reversal of 38788369 is 96388783.

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., 38291344 + 497025 = 6188^2 + 705^2 .

It is an emirp because it is prime and its reverse (96388783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38788369 - 27 = 38788241 is a prime.

It is a super-2 number, since 2×387883692 = 3009075139360322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38788319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19394184 + 19394185.

It is an arithmetic number, because the mean of its divisors is an integer number (19394185).

Almost surely, 238788369 is an apocalyptic number.

It is an amenable number.

38788369 is a deficient number, since it is larger than the sum of its proper divisors (1).

38788369 is an equidigital number, since it uses as much as digits as its factorization.

38788369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 38788369 is about 6228.0309087223. The cubic root of 38788369 is about 338.5066250239.

The spelling of 38788369 in words is "thirty-eight million, seven hundred eighty-eight thousand, three hundred sixty-nine".