Base | Representation |
---|---|
bin | 100100010111001… |
… | …1011010011110000 |
3 | 10011000220000202012 |
4 | 1020232123103300 |
5 | 4444323130112 |
6 | 321023342052 |
7 | 42143635262 |
oct | 11056332360 |
9 | 3130800665 |
10 | 1220130032 |
11 | 576805830 |
12 | 2a0751928 |
13 | 165a21b44 |
14 | b808db32 |
15 | 721b5022 |
hex | 48b9b4f0 |
1220130032 has 40 divisors (see below), whose sum is σ = 2617427712. Its totient is φ = 546321600.
The previous prime is 1220130017. The next prime is 1220130061. The reversal of 1220130032 is 2300310221.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 1220129989 and 1220130016.
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, 39944 + ... + 63527.
Almost surely, 21220130032 is an apocalyptic number.
It is an amenable number.
1220130032 is an abundant number, since it is smaller than the sum of its proper divisors (1397297680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1220130032 is a wasteful number, since it uses less digits than its factorization.
1220130032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 103557 (or 103551 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 1220130032 is about 34930.3597462150. The cubic root of 1220130032 is about 1068.5676913843.
Adding to 1220130032 its reverse (2300310221), we get a palindrome (3520440253).
The spelling of 1220130032 in words is "one billion, two hundred twenty million, one hundred thirty thousand, thirty-two".
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