Base | Representation |
---|---|
bin | 100100001011111… |
… | …1000101011101000 |
3 | 10010121202211010100 |
4 | 1020113320223220 |
5 | 4441320033112 |
6 | 320252545400 |
7 | 42042465003 |
oct | 11027705350 |
9 | 3117684110 |
10 | 1214221032 |
11 | 57343a262 |
12 | 29a782260 |
13 | 1647333ab |
14 | b739253a |
15 | 718e92dc |
hex | 485f8ae8 |
1214221032 has 48 divisors (see below), whose sum is σ = 3291727140. Its totient is φ = 404345088.
The previous prime is 1214221013. The next prime is 1214221061. The reversal of 1214221032 is 2301224121.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 992628036 + 221592996 = 31506^2 + 14886^2 .
It is a super-2 number, since 2×12142210322 = 2948665429102290048, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 1214220996 and 1214221014.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71298 + ... + 86670.
Almost surely, 21214221032 is an apocalyptic number.
1214221032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1214221032 is an abundant number, since it is smaller than the sum of its proper divisors (2077506108).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1214221032 is a wasteful number, since it uses less digits than its factorization.
1214221032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16482 (or 16475 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 18.
The square root of 1214221032 is about 34845.6745091841. The cubic root of 1214221032 is about 1066.8399009439.
Adding to 1214221032 its reverse (2301224121), we get a palindrome (3515445153).
The spelling of 1214221032 in words is "one billion, two hundred fourteen million, two hundred twenty-one thousand, thirty-two".
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