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28420210131433 is a prime number
BaseRepresentation
bin1100111011001000110001…
…00001111000000111101001
310201121221112022100022220021
412131210120201320013221
512211114042243201213
6140240021515400441
75662202205151141
oct635443041700751
9121557468308807
1028420210131433
119067a4178452a
12323003aa53121
1312b20255b4783
1470378cc43921
1534441cb1bd8d
hex19d9188781e9

28420210131433 has 2 divisors, whose sum is σ = 28420210131434. Its totient is φ = 28420210131432.

The previous prime is 28420210131409. The next prime is 28420210131457. The reversal of 28420210131433 is 33413101202482.

It is a balanced prime because it is at equal distance from previous prime (28420210131409) and next prime (28420210131457).

It can be written as a sum of positive squares in only one way, i.e., 18128452093504 + 10291758037929 = 4257752^2 + 3208077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28420210131433 is a prime.

It is not a weakly prime, because it can be changed into another prime (28420210131493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14210105065716 + 14210105065717.

It is an arithmetic number, because the mean of its divisors is an integer number (14210105065717).

Almost surely, 228420210131433 is an apocalyptic number.

It is an amenable number.

28420210131433 is a deficient number, since it is larger than the sum of its proper divisors (1).

28420210131433 is an equidigital number, since it uses as much as digits as its factorization.

28420210131433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

The spelling of 28420210131433 in words is "twenty-eight trillion, four hundred twenty billion, two hundred ten million, one hundred thirty-one thousand, four hundred thirty-three".