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38028911 is a prime number
BaseRepresentation
bin1001000100010…
…0011001101111
32122120001212012
42101010121233
534213411121
63435031435
7641145314
oct221043157
978501765
1038028911
111a514758
121089b57b
137b5661b
14509cd0b
153512c5b
hex244466f

38028911 has 2 divisors, whose sum is σ = 38028912. Its totient is φ = 38028910.

The previous prime is 38028883. The next prime is 38028943. The reversal of 38028911 is 11982083.

It is an a-pointer prime, because the next prime (38028943) can be obtained adding 38028911 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38028911 - 218 = 37766767 is a prime.

It is a Sophie Germain prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38028811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19014455 + 19014456.

It is an arithmetic number, because the mean of its divisors is an integer number (19014456).

Almost surely, 238028911 is an apocalyptic number.

38028911 is a deficient number, since it is larger than the sum of its proper divisors (1).

38028911 is an equidigital number, since it uses as much as digits as its factorization.

38028911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 38028911 is about 6166.7585488650. The cubic root of 38028911 is about 336.2827805321.

The spelling of 38028911 in words is "thirty-eight million, twenty-eight thousand, nine hundred eleven".