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101210009969 is a prime number
BaseRepresentation
bin101111001000010010…
…1100011000101110001
3100200020111111012212202
41132100211203011301
53124234230304334
6114254545432545
710212035614235
oct1362045430561
9320214435782
10101210009969
1139a17459542
121774703b755
13970c3ca183
144c81a385c5
1529755a117e
hex1790963171

101210009969 has 2 divisors, whose sum is σ = 101210009970. Its totient is φ = 101210009968.

The previous prime is 101210009959. The next prime is 101210009987. The reversal of 101210009969 is 969900012101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73124272225 + 28085737744 = 270415^2 + 167588^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101210009969 is a prime.

It is a super-2 number, since 2×1012100099692 (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (101210009959) 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, 50605004984 + 50605004985.

It is an arithmetic number, because the mean of its divisors is an integer number (50605004985).

Almost surely, 2101210009969 is an apocalyptic number.

It is an amenable number.

101210009969 is a deficient number, since it is larger than the sum of its proper divisors (1).

101210009969 is an equidigital number, since it uses as much as digits as its factorization.

101210009969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 38.

The spelling of 101210009969 in words is "one hundred one billion, two hundred ten million, nine thousand, nine hundred sixty-nine".