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38378887383 = 312792962461
BaseRepresentation
bin100011101111100011…
…110101100011010111
310200001200122111001110
4203233203311203113
51112044443344013
625344144430103
72526031105644
oct435743654327
9120050574043
1038378887383
1115304977151
127531018333
133808266b25
141c0117cdcb
15ee95172c3
hex8ef8f58d7

38378887383 has 4 divisors (see below), whose sum is σ = 51171849848. Its totient is φ = 25585924920.

The previous prime is 38378887381. The next prime is 38378887397.

38378887383 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 38378887383 - 21 = 38378887381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38378887381) 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, 6396481228 + ... + 6396481233.

It is an arithmetic number, because the mean of its divisors is an integer number (12792962462).

Almost surely, 238378887383 is an apocalyptic number.

38378887383 is a deficient number, since it is larger than the sum of its proper divisors (12792962465).

38378887383 is a wasteful number, since it uses less digits than its factorization.

38378887383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12792962464.

The product of its digits is 130056192, while the sum is 66.

The spelling of 38378887383 in words is "thirty-eight billion, three hundred seventy-eight million, eight hundred eighty-seven thousand, three hundred eighty-three".

Divisors: 1 3 12792962461 38378887383