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28485058487 is a prime number
BaseRepresentation
bin11010100001110101…
…110111111110110111
32201112011122220022012
4122201311313332313
5431314133332422
621030313354435
72025613000514
oct324165677667
981464586265
1028485058487
1111098089056
12562b708a1b
1328bc570cc2
14154317630b
15b1ab2c4e2
hex6a1d77fb7

28485058487 has 2 divisors, whose sum is σ = 28485058488. Its totient is φ = 28485058486.

The previous prime is 28485058439. The next prime is 28485058489. The reversal of 28485058487 is 78485058482.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28485058487 - 222 = 28480864183 is a prime.

It is a super-2 number, since 2×284850584872 (a number of 22 digits) contains 22 as substring.

Together with 28485058489, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28485058489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14242529243 + 14242529244.

It is an arithmetic number, because the mean of its divisors is an integer number (14242529244).

Almost surely, 228485058487 is an apocalyptic number.

28485058487 is a deficient number, since it is larger than the sum of its proper divisors (1).

28485058487 is an equidigital number, since it uses as much as digits as its factorization.

28485058487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22937600, while the sum is 59.

The spelling of 28485058487 in words is "twenty-eight billion, four hundred eighty-five million, fifty-eight thousand, four hundred eighty-seven".