| Base | Representation |
|---|---|
| bin | 100100010001… |
| … | …1010011111000 |
| 3 | 1022210021011102 |
| 4 | 1020203103320 |
| 5 | 14332102000 |
| 6 | 1515350532 |
| 7 | 320441660 |
| oct | 110432370 |
| 9 | 38707142 |
| 10 | 19019000 |
| 11 | a810290 |
| 12 | 6452448 |
| 13 | 3c2ba60 |
| 14 | 27511a0 |
| 15 | 1a0a3d5 |
| hex | 12234f8 |
19019000 has 256 divisors, whose sum is σ = 62899200. Its totient is φ = 5184000.
The previous prime is 19018991. The next prime is 19019009. The reversal of 19019000 is 91091.
19019000 = T664 + T665 + ... + T740.
It is an interprime number because it is at equal distance from previous prime (19018991) and next prime (19019009).
It is a super-2 number, since 2×190190002 = 723444722000000, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19019009) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1000991 + ... + 1001009.
It is an arithmetic number, because the mean of its divisors is an integer number (245700).
Almost surely, 219019000 is an apocalyptic number.
19019000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 19019000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31449600).
19019000 is an abundant number, since it is smaller than the sum of its proper divisors (43880200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19019000 is a wasteful number, since it uses less digits than its factorization.
19019000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 71 (or 57 counting only the distinct ones).
The product of its (nonzero) digits is 81, while the sum is 20.
The square root of 19019000 is about 4361.0778484223. The cubic root of 19019000 is about 266.9290819614.
It can be divided in two parts, 1901 and 9000, that added together give a palindrome (10901).
The spelling of 19019000 in words is "nineteen million, nineteen thousand".
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