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38284131 = 312761377
BaseRepresentation
bin1001001000001…
…0101101100011
32200001000221210
42102002231203
534300043011
63444321203
7643260354
oct222025543
980030853
1038284131
111a679486
12109a3203
137c15842
145127d2b
1535636a6
hex2482b63

38284131 has 4 divisors (see below), whose sum is σ = 51045512. Its totient is φ = 25522752.

The previous prime is 38284109. The next prime is 38284133. The reversal of 38284131 is 13148283.

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

It is not a de Polignac number, because 38284131 - 26 = 38284067 is a prime.

It is a super-2 number, since 2×382841312 = 2931349372850322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38284133) 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 3 ways as a sum of consecutive naturals, for example, 6380686 + ... + 6380691.

It is an arithmetic number, because the mean of its divisors is an integer number (12761378).

Almost surely, 238284131 is an apocalyptic number.

38284131 is a deficient number, since it is larger than the sum of its proper divisors (12761381).

38284131 is a wasteful number, since it uses less digits than its factorization.

38284131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12761380.

The product of its digits is 4608, while the sum is 30.

The square root of 38284131 is about 6187.4171509605. The cubic root of 38284131 is about 337.0333919546.

The spelling of 38284131 in words is "thirty-eight million, two hundred eighty-four thousand, one hundred thirty-one".

Divisors: 1 3 12761377 38284131