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20620152224 = 257773119087
BaseRepresentation
bin10011001101000011…
…101000110110100000
31222020001110021011122
4103031003220312200
5314212224332344
613250041231412
71326662254610
oct231503506640
958201407148
1020620152224
1188215a1621
123bb5792568
131c3800b009
14dd87d6a40
1580a419aee
hex4cd0e8da0

20620152224 has 48 divisors (see below), whose sum is σ = 46455752448. Its totient is φ = 8825701632.

The previous prime is 20620152191. The next prime is 20620152239. The reversal of 20620152224 is 42225102602.

It is a junction number, because it is equal to n+sod(n) for n = 20620152193 and 20620152202.

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, 113609 + ... + 232695.

It is an arithmetic number, because the mean of its divisors is an integer number (967828176).

Almost surely, 220620152224 is an apocalyptic number.

It is an amenable number.

20620152224 is an abundant number, since it is smaller than the sum of its proper divisors (25835600224).

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

20620152224 is a wasteful number, since it uses less digits than its factorization.

20620152224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119877 (or 119869 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 20620152224 its reverse (42225102602), we get a palindrome (62845254826).

The spelling of 20620152224 in words is "twenty billion, six hundred twenty million, one hundred fifty-two thousand, two hundred twenty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 773 1546 3092 5411 6184 10822 12368 21644 24736 43288 86576 119087 173152 238174 476348 833609 952696 1667218 1905392 3334436 3810784 6668872 13337744 26675488 92054251 184108502 368217004 644379757 736434008 1288759514 1472868016 2577519028 2945736032 5155038056 10310076112 20620152224