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38200865455 = 57640173091
BaseRepresentation
bin100011100100111100…
…101111001010101111
310122121021200000212201
4203210330233022233
51111213410143310
625314345042331
72521436666404
oct434474571257
9118537600781
1038200865455
1115223435695
1274a14863a7
1337aa4063cc
141bc567c2ab
15ed8a9ee3a
hex8e4f2f2af

38200865455 has 4 divisors (see below), whose sum is σ = 45841038552. Its totient is φ = 30560692360.

The previous prime is 38200865447. The next prime is 38200865459. The reversal of 38200865455 is 55456800283.

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

It is not a de Polignac number, because 38200865455 - 23 = 38200865447 is a prime.

It is a super-2 number, since 2×382008654552 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38200865459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3820086541 + ... + 3820086550.

It is an arithmetic number, because the mean of its divisors is an integer number (11460259638).

Almost surely, 238200865455 is an apocalyptic number.

38200865455 is a deficient number, since it is larger than the sum of its proper divisors (7640173097).

38200865455 is an equidigital number, since it uses as much as digits as its factorization.

38200865455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7640173096.

The product of its (nonzero) digits is 1152000, while the sum is 46.

The spelling of 38200865455 in words is "thirty-eight billion, two hundred million, eight hundred sixty-five thousand, four hundred fifty-five".

Divisors: 1 5 7640173091 38200865455