Base | Representation |
---|---|
bin | 100100010111… |
… | …1100100111101 |
3 | 1022212211002100 |
4 | 1020233210331 |
5 | 14340203440 |
6 | 1520415313 |
7 | 321041316 |
oct | 110574475 |
9 | 38784070 |
10 | 19069245 |
11 | a845008 |
12 | 6477539 |
13 | 3c488a0 |
14 | 276560d |
15 | 1a1a230 |
hex | 122f93d |
19069245 has 48 divisors (see below), whose sum is σ = 36599472. Its totient is φ = 9123840.
The previous prime is 19069243. The next prime is 19069261. The reversal of 19069245 is 54296091.
It can be written as a sum of positive squares in 8 ways, for example, as 870489 + 18198756 = 933^2 + 4266^2 .
It is not a de Polignac number, because 19069245 - 21 = 19069243 is a prime.
It is a super-2 number, since 2×190692452 = 727272209740050, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19069243) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21205 + ... + 22085.
It is an arithmetic number, because the mean of its divisors is an integer number (762489).
Almost surely, 219069245 is an apocalyptic number.
19069245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
19069245 is a deficient number, since it is larger than the sum of its proper divisors (17530227).
19069245 is a wasteful number, since it uses less digits than its factorization.
19069245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 942 (or 939 counting only the distinct ones).
The product of its (nonzero) digits is 19440, while the sum is 36.
The square root of 19069245 is about 4366.8346659795. The cubic root of 19069245 is about 267.1639358515.
The spelling of 19069245 in words is "nineteen million, sixty-nine thousand, two hundred forty-five".
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