Base | Representation |
---|---|
bin | 100101001010… |
… | …1110100011110 |
3 | 1100200002112220 |
4 | 1022111310132 |
5 | 14442104110 |
6 | 1533410210 |
7 | 324434262 |
oct | 112256436 |
9 | 40602486 |
10 | 19488030 |
11 | 10000711 |
12 | 6639966 |
13 | 40643a3 |
14 | 28340a2 |
15 | 1a9e370 |
hex | 1295d1e |
19488030 has 32 divisors (see below), whose sum is σ = 47862144. Its totient is φ = 5075616.
The previous prime is 19488019. The next prime is 19488041. The reversal of 19488030 is 3088491.
It is an interprime number because it is at equal distance from previous prime (19488019) and next prime (19488041).
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 19487982 and 19488000.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6264 + ... + 8843.
It is an arithmetic number, because the mean of its divisors is an integer number (1495692).
Almost surely, 219488030 is an apocalyptic number.
19488030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
19488030 is an abundant number, since it is smaller than the sum of its proper divisors (28374114).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
19488030 is a wasteful number, since it uses less digits than its factorization.
19488030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15160.
The product of its (nonzero) digits is 6912, while the sum is 33.
The square root of 19488030 is about 4414.5248894983. The cubic root of 19488030 is about 269.1055449255.
The spelling of 19488030 in words is "nineteen million, four hundred eighty-eight thousand, thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •