Base | Representation |
---|---|
bin | 10011000010010100… |
… | …00101101000111111 |
3 | 222101020200012222121 |
4 | 21201022011220333 |
5 | 131412303002322 |
6 | 4410041223411 |
7 | 511155206146 |
oct | 114112055077 |
9 | 28336605877 |
10 | 10219969087 |
11 | 43749a7049 |
12 | 1b92791b67 |
13 | c6b446ab3 |
14 | 6cd46275d |
15 | 3ec35dec7 |
hex | 261285a3f |
10219969087 has 2 divisors, whose sum is σ = 10219969088. Its totient is φ = 10219969086.
The previous prime is 10219969079. The next prime is 10219969093. The reversal of 10219969087 is 78096991201.
It is a strong prime.
It is an emirp because it is prime and its reverse (78096991201) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 10219969087 - 23 = 10219969079 is a prime.
It is a super-2 number, since 2×102199690872 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (10219969027) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5109984543 + 5109984544.
It is an arithmetic number, because the mean of its divisors is an integer number (5109984544).
Almost surely, 210219969087 is an apocalyptic number.
10219969087 is a deficient number, since it is larger than the sum of its proper divisors (1).
10219969087 is an equidigital number, since it uses as much as digits as its factorization.
10219969087 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 489888, while the sum is 52.
The spelling of 10219969087 in words is "ten billion, two hundred nineteen million, nine hundred sixty-nine thousand, eighty-seven".
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