Base | Representation |
---|---|
bin | 101010100111110… |
… | …1111100110011010 |
3 | 10200200011012112011 |
4 | 1111033233212122 |
5 | 10412112043430 |
6 | 353525540134 |
7 | 50304263401 |
oct | 12517574632 |
9 | 3620135464 |
10 | 1430190490 |
11 | 67433a313 |
12 | 33ab7464a |
13 | 19a3bc381 |
14 | d7d30638 |
15 | 8585a22a |
hex | 553ef99a |
1430190490 has 8 divisors (see below), whose sum is σ = 2574342900. Its totient is φ = 572076192.
The previous prime is 1430190457. The next prime is 1430190491. The reversal of 1430190490 is 940910341.
It can be written as a sum of positive squares in 2 ways, for example, as 1428310849 + 1879641 = 37793^2 + 1371^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (1430190491) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71509515 + ... + 71509534.
Almost surely, 21430190490 is an apocalyptic number.
1430190490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1430190490 is a deficient number, since it is larger than the sum of its proper divisors (1144152410).
1430190490 is a wasteful number, since it uses less digits than its factorization.
1430190490 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 143019056.
The product of its (nonzero) digits is 3888, while the sum is 31.
The square root of 1430190490 is about 37817.8594053127. The cubic root of 1430190490 is about 1126.6731948589.
The spelling of 1430190490 in words is "one billion, four hundred thirty million, one hundred ninety thousand, four hundred ninety".
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