Base | Representation |
---|---|
bin | 101110010101111… |
… | …1001111001101110 |
3 | 11000101000212010121 |
4 | 1130223321321232 |
5 | 11141040410410 |
6 | 414145155154 |
7 | 53351252161 |
oct | 13453717156 |
9 | 4011025117 |
10 | 1555013230 |
11 | 728845501 |
12 | 37492baba |
13 | 1ba214494 |
14 | 10a743ad8 |
15 | 917b49da |
hex | 5caf9e6e |
1555013230 has 32 divisors (see below), whose sum is σ = 2825653248. Its totient is φ = 616106400.
The previous prime is 1555013209. The next prime is 1555013267. The reversal of 1555013230 is 323105551.
It is a super-2 number, since 2×15550132302 = 4836132290950065800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1555013195 and 1555013204.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1192759 + ... + 1194061.
It is an arithmetic number, because the mean of its divisors is an integer number (88301664).
Almost surely, 21555013230 is an apocalyptic number.
1555013230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1555013230 is a deficient number, since it is larger than the sum of its proper divisors (1270640018).
1555013230 is a wasteful number, since it uses less digits than its factorization.
1555013230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2352.
The product of its (nonzero) digits is 2250, while the sum is 25.
The square root of 1555013230 is about 39433.6560567239. The cubic root of 1555013230 is about 1158.5408799240.
Adding to 1555013230 its reverse (323105551), we get a palindrome (1878118781).
The spelling of 1555013230 in words is "one billion, five hundred fifty-five million, thirteen thousand, two hundred thirty".
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