Search a number
-
+
17208979967 is a prime number
BaseRepresentation
bin10000000001101111…
…000011000111111111
31122102022201202112102
4100001233003013333
5240220444324332
611523344055315
71146311626154
oct200157030777
948368652472
1017208979967
1173310253a3
12340330453b
1318133a2baa
14b9375c22b
156aac07062
hex401bc31ff

17208979967 has 2 divisors, whose sum is σ = 17208979968. Its totient is φ = 17208979966.

The previous prime is 17208979927. The next prime is 17208979969. The reversal of 17208979967 is 76997980271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17208979967 - 26 = 17208979903 is a prime.

It is a super-2 number, since 2×172089799672 (a number of 21 digits) contains 22 as substring.

Together with 17208979969, 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 (17208979969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8604489983 + 8604489984.

It is an arithmetic number, because the mean of its divisors is an integer number (8604489984).

Almost surely, 217208979967 is an apocalyptic number.

17208979967 is a deficient number, since it is larger than the sum of its proper divisors (1).

17208979967 is an equidigital number, since it uses as much as digits as its factorization.

17208979967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24004512, while the sum is 65.

The spelling of 17208979967 in words is "seventeen billion, two hundred eight million, nine hundred seventy-nine thousand, nine hundred sixty-seven".