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38382433291 = 229167608879
BaseRepresentation
bin100011101111110001…
…010111010000001011
310200001221022122010101
4203233301113100023
51112101400331131
625344352430231
72526103204606
oct435761272013
9120057278111
1038382433291
1115306979254
127532248377
133808c08ab7
141c0182333d
15ee99b7c61
hex8efc5740b

38382433291 has 4 divisors (see below), whose sum is σ = 38550042400. Its totient is φ = 38214824184.

The previous prime is 38382433211. The next prime is 38382433321. The reversal of 38382433291 is 19233428383.

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

It is a cyclic number.

It is not a de Polignac number, because 38382433291 - 217 = 38382302219 is a prime.

It is a super-2 number, since 2×383824332912 (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 (38382433211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83804211 + ... + 83804668.

It is an arithmetic number, because the mean of its divisors is an integer number (9637510600).

Almost surely, 238382433291 is an apocalyptic number.

38382433291 is a deficient number, since it is larger than the sum of its proper divisors (167609109).

38382433291 is a wasteful number, since it uses less digits than its factorization.

38382433291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167609108.

The product of its digits is 746496, while the sum is 46.

The spelling of 38382433291 in words is "thirty-eight billion, three hundred eighty-two million, four hundred thirty-three thousand, two hundred ninety-one".

Divisors: 1 229 167608879 38382433291