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30032200020 = 2235500536667
BaseRepresentation
bin11011111110000011…
…110000000101010100
32212111222212211111110
4123332003300011110
5443001220400040
621444022135020
72112140326314
oct337603600524
985458784443
1030032200020
1111811437419
1259a1881470
132aa7c5a574
14164c82b444
15bab889980
hex6fe0f0154

30032200020 has 24 divisors (see below), whose sum is σ = 84090160224. Its totient is φ = 8008586656.

The previous prime is 30032200007. The next prime is 30032200031. The reversal of 30032200020 is 2000223003.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30032199969 and 30032200005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250268274 + ... + 250268393.

It is an arithmetic number, because the mean of its divisors is an integer number (3503756676).

Almost surely, 230032200020 is an apocalyptic number.

30032200020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30032200020 is an abundant number, since it is smaller than the sum of its proper divisors (54057960204).

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

30032200020 is a wasteful number, since it uses less digits than its factorization.

30032200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500536679 (or 500536677 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 30032200020 its reverse (2000223003), we get a palindrome (32032423023).

The spelling of 30032200020 in words is "thirty billion, thirty-two million, two hundred thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 500536667 1001073334 1501610001 2002146668 2502683335 3003220002 5005366670 6006440004 7508050005 10010733340 15016100010 30032200020