Base | Representation |
---|---|
bin | 100100010111010… |
… | …1100101001000110 |
3 | 10011001000122010202 |
4 | 1020232230221012 |
5 | 4444332413110 |
6 | 321025050502 |
7 | 42144352256 |
oct | 11056545106 |
9 | 3131018122 |
10 | 1220201030 |
11 | 576854104 |
12 | 2a0786a32 |
13 | 165a48259 |
14 | b80ab966 |
15 | 721cb0a5 |
hex | 48baca46 |
1220201030 has 16 divisors (see below), whose sum is σ = 2227297824. Its totient is φ = 481205760.
The previous prime is 1220201023. The next prime is 1220201051. The reversal of 1220201030 is 301020221.
It is a happy number.
It is a super-2 number, since 2×12202010302 = 2977781107226121800, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858587 + ... + 860006.
It is an arithmetic number, because the mean of its divisors is an integer number (139206114).
Almost surely, 21220201030 is an apocalyptic number.
1220201030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1220201030 is a deficient number, since it is larger than the sum of its proper divisors (1007096794).
1220201030 is a wasteful number, since it uses less digits than its factorization.
1220201030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1718671.
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 1220201030 is about 34931.3760106870. The cubic root of 1220201030 is about 1068.5884172347.
Adding to 1220201030 its reverse (301020221), we get a palindrome (1521221251).
The spelling of 1220201030 in words is "one billion, two hundred twenty million, two hundred one thousand, thirty".
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