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10101092009 is a prime number
BaseRepresentation
bin10010110100001001…
…00110111010101001
3222001221222122021212
421122010212322221
5131141334421014
64350153242505
7505212602561
oct113204467251
928057878255
1010101092009
114313891a28
121b5aa03435
13c4c924028
146bb759da1
153e1bcb23e
hex25a126ea9

10101092009 has 2 divisors, whose sum is σ = 10101092010. Its totient is φ = 10101092008.

The previous prime is 10101091969. The next prime is 10101092017. The reversal of 10101092009 is 90029010101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8107201600 + 1993890409 = 90040^2 + 44653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10101092009 is a prime.

It is not a weakly prime, because it can be changed into another prime (10101092069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050546004 + 5050546005.

It is an arithmetic number, because the mean of its divisors is an integer number (5050546005).

Almost surely, 210101092009 is an apocalyptic number.

It is an amenable number.

10101092009 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101092009 is an equidigital number, since it uses as much as digits as its factorization.

10101092009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 23.

The spelling of 10101092009 in words is "ten billion, one hundred one million, ninety-two thousand, nine".