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28088168253331 is a prime number
BaseRepresentation
bin1100110001011110010010…
…10010101000011110010011
310200110012110201222020121011
412120233021102220132103
512140144032033101311
6135423305405511351
75626205664565324
oct630571122503623
9120405421866534
1028088168253331
118a4a1417a3a3a
123197812872557
13128991a3730a4
146d169041a44b
1533a98744d321
hex198bc94a8793

28088168253331 has 2 divisors, whose sum is σ = 28088168253332. Its totient is φ = 28088168253330.

The previous prime is 28088168253323. The next prime is 28088168253361. The reversal of 28088168253331 is 13335286188082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28088168253331 - 23 = 28088168253323 is a prime.

It is a super-2 number, since 2×280881682533312 (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28088168253361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14044084126665 + 14044084126666.

It is an arithmetic number, because the mean of its divisors is an integer number (14044084126666).

Almost surely, 228088168253331 is an apocalyptic number.

28088168253331 is a deficient number, since it is larger than the sum of its proper divisors (1).

28088168253331 is an equidigital number, since it uses as much as digits as its factorization.

28088168253331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13271040, while the sum is 58.

The spelling of 28088168253331 in words is "twenty-eight trillion, eighty-eight billion, one hundred sixty-eight million, two hundred fifty-three thousand, three hundred thirty-one".