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38087869 is a prime number
BaseRepresentation
bin1001000101001…
…0110010111101
32122200001201211
42101102302331
534222302434
63440204421
7641512231
oct221226275
978601654
1038087869
111a554a86
1210909711
137b77401
1450b65c1
153525464
hex2452cbd

38087869 has 2 divisors, whose sum is σ = 38087870. Its totient is φ = 38087868.

The previous prime is 38087849. The next prime is 38087887. The reversal of 38087869 is 96878083.

It is a happy number.

38087869 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 can be written as a sum of positive squares in only one way, i.e., 32148900 + 5938969 = 5670^2 + 2437^2 .

It is a cyclic number.

It is not a de Polignac number, because 38087869 - 217 = 37956797 is a prime.

It is a super-2 number, since 2×380878692 = 2901371529922322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38087849) 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, 19043934 + 19043935.

It is an arithmetic number, because the mean of its divisors is an integer number (19043935).

Almost surely, 238087869 is an apocalyptic number.

It is an amenable number.

38087869 is a deficient number, since it is larger than the sum of its proper divisors (1).

38087869 is an equidigital number, since it uses as much as digits as its factorization.

38087869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 38087869 is about 6171.5370046691. The cubic root of 38087869 is about 336.4564757765.

The spelling of 38087869 in words is "thirty-eight million, eighty-seven thousand, eight hundred sixty-nine".