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38028143 is a prime number
BaseRepresentation
bin1001000100010…
…0001101101111
32122120000210202
42101010031233
534213400033
63435024115
7641143136
oct221041557
978500722
1038028143
111a51411a
121089b03b
137b5617a
14509c91d
1535128e8
hex244436f

38028143 has 2 divisors, whose sum is σ = 38028144. Its totient is φ = 38028142.

The previous prime is 38028127. The next prime is 38028169. The reversal of 38028143 is 34182083.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38028143 - 24 = 38028127 is a prime.

It is a super-2 number, since 2×380281432 = 2892279320056898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38028043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19014071 + 19014072.

It is an arithmetic number, because the mean of its divisors is an integer number (19014072).

Almost surely, 238028143 is an apocalyptic number.

38028143 is a deficient number, since it is larger than the sum of its proper divisors (1).

38028143 is an equidigital number, since it uses as much as digits as its factorization.

38028143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 38028143 is about 6166.6962792082. The cubic root of 38028143 is about 336.2805167551.

The spelling of 38028143 in words is "thirty-eight million, twenty-eight thousand, one hundred forty-three".