Base | Representation |
---|---|
bin | 111110111001010… |
… | …100110110011101 |
3 | 2201112120110212020 |
4 | 332321110312131 |
5 | 4130113340010 |
6 | 252412530353 |
7 | 35102115405 |
oct | 7671246635 |
9 | 2645513766 |
10 | 1055215005 |
11 | 4a1706719 |
12 | 2554809b9 |
13 | 13a8001a0 |
14 | a0201805 |
15 | 6298b470 |
hex | 3ee54d9d |
1055215005 has 32 divisors (see below), whose sum is σ = 1820050176. Its totient is φ = 518966784.
The previous prime is 1055215003. The next prime is 1055215019. The reversal of 1055215005 is 5005125501.
It is not a de Polignac number, because 1055215005 - 21 = 1055215003 is a prime.
It is a super-2 number, since 2×10552150052 = 2226957413554300050, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1055215003) 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 31 ways as a sum of consecutive naturals, for example, 252009 + ... + 256161.
It is an arithmetic number, because the mean of its divisors is an integer number (56876568).
Almost surely, 21055215005 is an apocalyptic number.
1055215005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1055215005 is a deficient number, since it is larger than the sum of its proper divisors (764835171).
1055215005 is a wasteful number, since it uses less digits than its factorization.
1055215005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5477.
The product of its (nonzero) digits is 1250, while the sum is 24.
The square root of 1055215005 is about 32484.0730974427. The cubic root of 1055215005 is about 1018.0762809150.
The spelling of 1055215005 in words is "one billion, fifty-five million, two hundred fifteen thousand, five".
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