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28089180047 is a prime number
BaseRepresentation
bin11010001010001111…
…101101111110001111
32200111120202012011202
4122022033231332033
5430011312230142
620523132340115
72013035043125
oct321217557617
980446665152
1028089180047
1110a04678795
12553b01463b
1328585436c6
141506765915
15ae5ed0032
hex68a3edf8f

28089180047 has 2 divisors, whose sum is σ = 28089180048. Its totient is φ = 28089180046.

The previous prime is 28089179971. The next prime is 28089180071. The reversal of 28089180047 is 74008198082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28089180047 - 216 = 28089114511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28089179983 and 28089180010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28089140047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14044590023 + 14044590024.

It is an arithmetic number, because the mean of its divisors is an integer number (14044590024).

Almost surely, 228089180047 is an apocalyptic number.

28089180047 is a deficient number, since it is larger than the sum of its proper divisors (1).

28089180047 is an equidigital number, since it uses as much as digits as its factorization.

28089180047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 47.

The spelling of 28089180047 in words is "twenty-eight billion, eighty-nine million, one hundred eighty thousand, forty-seven".