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2028413 is a prime number
BaseRepresentation
bin111101111001101111101
310211001110102
413233031331
51004402123
6111250445
723145512
oct7571575
93731412
102028413
111165a82
12819a25
1356035a
143ab309
152a1028
hex1ef37d

2028413 has 2 divisors, whose sum is σ = 2028414. Its totient is φ = 2028412.

The previous prime is 2028401. The next prime is 2028431. The reversal of 2028413 is 3148202.

Together with next prime (2028431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2010724 + 17689 = 1418^2 + 133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2028413 is a prime.

It is a super-2 number, since 2×20284132 = 8228918597138, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014206 + 1014207.

It is an arithmetic number, because the mean of its divisors is an integer number (1014207).

22028413 is an apocalyptic number.

It is an amenable number.

2028413 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028413 is an equidigital number, since it uses as much as digits as its factorization.

2028413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2028413 is about 1424.2236481677. The cubic root of 2028413 is about 126.5859373249.

The spelling of 2028413 in words is "two million, twenty-eight thousand, four hundred thirteen".