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38369248769 = 184132083813
BaseRepresentation
bin100011101110111111…
…000100011000000001
310200001000111210100202
4203232333010120001
51112040011430034
625343202054545
72525553143015
oct435677043001
9120030453322
1038369248769
11152aa493555
12752994a455
1338062708c7
141bddb90545
15ee876147e
hex8eefc4601

38369248769 has 4 divisors (see below), whose sum is σ = 38371350996. Its totient is φ = 38367146544.

The previous prime is 38369248759. The next prime is 38369248843. The reversal of 38369248769 is 96784296383.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18262008769 + 20107240000 = 135137^2 + 141800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38369248769 is a prime.

It is a super-2 number, since 2×383692487692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38369248739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1023494 + ... + 1060319.

It is an arithmetic number, because the mean of its divisors is an integer number (9592837749).

Almost surely, 238369248769 is an apocalyptic number.

It is an amenable number.

38369248769 is a deficient number, since it is larger than the sum of its proper divisors (2102227).

38369248769 is a wasteful number, since it uses less digits than its factorization.

38369248769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102226.

The product of its digits is 94058496, while the sum is 65.

The spelling of 38369248769 in words is "thirty-eight billion, three hundred sixty-nine million, two hundred forty-eight thousand, seven hundred sixty-nine".

Divisors: 1 18413 2083813 38369248769