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38184131 = 379310067
BaseRepresentation
bin1001000110101…
…0010011000011
32122211221210002
42101222103003
534233343011
63442230215
7642362666
oct221522303
978757702
1038184131
111a610337
121095536b
137bac17b
1450dd6dd
153543c3b
hex246a4c3

38184131 has 4 divisors (see below), whose sum is σ = 38197992. Its totient is φ = 38170272.

The previous prime is 38184121. The next prime is 38184137. The reversal of 38184131 is 13148183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13148183 = 127103529.

It is a cyclic number.

It is not a de Polignac number, because 38184131 - 210 = 38183107 is a prime.

It is a super-2 number, since 2×381841312 = 2916055720450322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38184094 and 38184103.

It is not an unprimeable number, because it can be changed into a prime (38184137) 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, 1241 + ... + 8826.

It is an arithmetic number, because the mean of its divisors is an integer number (9549498).

Almost surely, 238184131 is an apocalyptic number.

38184131 is a deficient number, since it is larger than the sum of its proper divisors (13861).

38184131 is a wasteful number, since it uses less digits than its factorization.

38184131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13860.

The product of its digits is 2304, while the sum is 29.

The square root of 38184131 is about 6179.3309508393. The cubic root of 38184131 is about 336.7396869138.

The spelling of 38184131 in words is "thirty-eight million, one hundred eighty-four thousand, one hundred thirty-one".

Divisors: 1 3793 10067 38184131