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38816541 = 3214093061
BaseRepresentation
bin1001010000010…
…0101100011101
32201001002021200
42110010230131
534414112131
63503550113
7650635521
oct224045435
981032250
1038816541
111aa02495
1210bbb339
138070c8a
145225d81
15361b2e6
hex2504b1d

38816541 has 12 divisors (see below), whose sum is σ = 56126460. Its totient is φ = 25850880.

The previous prime is 38816483. The next prime is 38816543. The reversal of 38816541 is 14561883.

38816541 is a `hidden beast` number, since 38 + 81 + 6 + 541 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17388900 + 21427641 = 4170^2 + 4629^2 .

It is not a de Polignac number, because 38816541 - 217 = 38685469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38816496 and 38816505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38816543) 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 11 ways as a sum of consecutive naturals, for example, 11151 + ... + 14211.

It is an arithmetic number, because the mean of its divisors is an integer number (4677205).

Almost surely, 238816541 is an apocalyptic number.

It is an amenable number.

38816541 is a deficient number, since it is larger than the sum of its proper divisors (17309919).

38816541 is a wasteful number, since it uses less digits than its factorization.

38816541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476 (or 4473 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 38816541 is about 6230.2922082355. The cubic root of 38816541 is about 338.5885576672.

The spelling of 38816541 in words is "thirty-eight million, eight hundred sixteen thousand, five hundred forty-one".

Divisors: 1 3 9 1409 3061 4227 9183 12681 27549 4312949 12938847 38816541