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38816143 = 432713331
BaseRepresentation
bin1001010000010…
…0100110001111
32201001001201221
42110010212033
534414104033
63503544211
7650634412
oct224044617
981031657
1038816143
111aa02163
1210bbb067
138070a42
145225b79
15361b12d
hex250498f

38816143 has 8 divisors (see below), whose sum is σ = 39877376. Its totient is φ = 37762200.

The previous prime is 38816131. The next prime is 38816161. The reversal of 38816143 is 34161883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-38816143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38816099 and 38816108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38816243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9988 + ... + 13318.

It is an arithmetic number, because the mean of its divisors is an integer number (4984672).

Almost surely, 238816143 is an apocalyptic number.

38816143 is a deficient number, since it is larger than the sum of its proper divisors (1061233).

38816143 is a wasteful number, since it uses less digits than its factorization.

38816143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645.

The product of its digits is 13824, while the sum is 34.

The square root of 38816143 is about 6230.2602674367. The cubic root of 38816143 is about 338.5874004397.

The spelling of 38816143 in words is "thirty-eight million, eight hundred sixteen thousand, one hundred forty-three".

Divisors: 1 43 271 3331 11653 143233 902701 38816143