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1032213220 = 22551610661
BaseRepresentation
bin111101100001100…
…101001011100100
32122221021212100021
4331201211023210
54103221310340
6250231524524
734402444663
oct7541451344
92587255307
101032213220
1148a726085
12249829744
13135b0866c
149b134dda
1560945e4a
hex3d8652e4

1032213220 has 12 divisors (see below), whose sum is σ = 2167647804. Its totient is φ = 412885280.

The previous prime is 1032213179. The next prime is 1032213241. The reversal of 1032213220 is 223122301.

1032213220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 506520036 + 525693184 = 22506^2 + 22928^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1032213194 and 1032213203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25805311 + ... + 25805350.

It is an arithmetic number, because the mean of its divisors is an integer number (180637317).

Almost surely, 21032213220 is an apocalyptic number.

1032213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1032213220 is an abundant number, since it is smaller than the sum of its proper divisors (1135434584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1032213220 is a wasteful number, since it uses less digits than its factorization.

1032213220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51610670 (or 51610668 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1032213220 is about 32128.0752613660. The cubic root of 1032213220 is about 1010.6244610669.

Adding to 1032213220 its reverse (223122301), we get a palindrome (1255335521).

The spelling of 1032213220 in words is "one billion, thirty-two million, two hundred thirteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 51610661 103221322 206442644 258053305 516106610 1032213220