Base | Representation |
---|---|
bin | 101110101110011111… |
… | …1111011111001010111 |
3 | 100121000011220100222122 |
4 | 1131130333323321113 |
5 | 3121001143341322 |
6 | 114033031050155 |
7 | 10151426164631 |
oct | 1353477737127 |
9 | 317004810878 |
10 | 100344512087 |
11 | 39612952136 |
12 | 1754521095b |
13 | 9601cc3a51 |
14 | 4bdcadda51 |
15 | 29245dc442 |
hex | 175cffbe57 |
100344512087 has 2 divisors, whose sum is σ = 100344512088. Its totient is φ = 100344512086.
The previous prime is 100344512053. The next prime is 100344512113. The reversal of 100344512087 is 780215443001.
It is a strong prime.
It is an emirp because it is prime and its reverse (780215443001) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 100344512087 - 220 = 100343463511 is a prime.
It is a super-2 number, since 2×1003445120872 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (100344512017) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50172256043 + 50172256044.
It is an arithmetic number, because the mean of its divisors is an integer number (50172256044).
Almost surely, 2100344512087 is an apocalyptic number.
100344512087 is a deficient number, since it is larger than the sum of its proper divisors (1).
100344512087 is an equidigital number, since it uses as much as digits as its factorization.
100344512087 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 26880, while the sum is 35.
Adding to 100344512087 its reverse (780215443001), we get a palindrome (880559955088).
The spelling of 100344512087 in words is "one hundred billion, three hundred forty-four million, five hundred twelve thousand, eighty-seven".
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