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10871001257 is a prime number
BaseRepresentation
bin10100001111111011…
…00101000010101001
31001001121201002020012
422013331211002221
5134230434020012
64554415141305
7533251662134
oct120775450251
931047632205
1010871001257
114679440166
122134814835
13104329c82c
14751ad121b
154395ac622
hex287f650a9

10871001257 has 2 divisors, whose sum is σ = 10871001258. Its totient is φ = 10871001256.

The previous prime is 10871001247. The next prime is 10871001283. The reversal of 10871001257 is 75210017801.

10871001257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6783828496 + 4087172761 = 82364^2 + 63931^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10871001257 is a prime.

It is not a weakly prime, because it can be changed into another prime (10871001227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5435500628 + 5435500629.

It is an arithmetic number, because the mean of its divisors is an integer number (5435500629).

Almost surely, 210871001257 is an apocalyptic number.

It is an amenable number.

10871001257 is a deficient number, since it is larger than the sum of its proper divisors (1).

10871001257 is an equidigital number, since it uses as much as digits as its factorization.

10871001257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3920, while the sum is 32.

The spelling of 10871001257 in words is "ten billion, eight hundred seventy-one million, one thousand, two hundred fifty-seven".