Base | Representation |
---|---|
bin | 100100011001… |
… | …1011010101001 |
3 | 1022220121122201 |
4 | 1020303122221 |
5 | 14341204334 |
6 | 1521020201 |
7 | 321135211 |
oct | 110633251 |
9 | 38817581 |
10 | 19084969 |
11 | a855902 |
12 | 6484661 |
13 | 3c52aa7 |
14 | 276b241 |
15 | 1a1ec14 |
hex | 12336a9 |
19084969 has 2 divisors, whose sum is σ = 19084970. Its totient is φ = 19084968.
The previous prime is 19084957. The next prime is 19084979. The reversal of 19084969 is 96948091.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10323369 + 8761600 = 3213^2 + 2960^2 .
It is a cyclic number.
It is not a de Polignac number, because 19084969 - 219 = 18560681 is a prime.
It is a super-2 number, since 2×190849692 = 728472083461922, which contains 22 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (19084979) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9542484 + 9542485.
It is an arithmetic number, because the mean of its divisors is an integer number (9542485).
Almost surely, 219084969 is an apocalyptic number.
It is an amenable number.
19084969 is a deficient number, since it is larger than the sum of its proper divisors (1).
19084969 is an equidigital number, since it uses as much as digits as its factorization.
19084969 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 139968, while the sum is 46.
The square root of 19084969 is about 4368.6346837427. The cubic root of 19084969 is about 267.2373478055.
The spelling of 19084969 in words is "nineteen million, eighty-four thousand, nine hundred sixty-nine".
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