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20333301212 = 2271938220491
BaseRepresentation
bin10010111011111101…
…011000110111011100
31221111001200201120002
4102323331120313130
5313120311114322
613201353113432
71316610131360
oct227375306734
957431621502
1020333301212
118694689174
123b356b8878
131bc07651a3
14dac6872a0
157e0156c92
hex4bbf58ddc

20333301212 has 24 divisors (see below), whose sum is σ = 42806951040. Its totient is φ = 8255625840.

The previous prime is 20333301211. The next prime is 20333301221. The reversal of 20333301212 is 21210333302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20333301211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19109714 + ... + 19110777.

It is an arithmetic number, because the mean of its divisors is an integer number (1783622960).

Almost surely, 220333301212 is an apocalyptic number.

It is an amenable number.

20333301212 is an abundant number, since it is smaller than the sum of its proper divisors (22473649828).

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

20333301212 is a wasteful number, since it uses less digits than its factorization.

20333301212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38220521 (or 38220519 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20333301212 its reverse (21210333302), we get a palindrome (41543634514).

The spelling of 20333301212 in words is "twenty billion, three hundred thirty-three million, three hundred one thousand, two hundred twelve".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 38220491 76440982 152881964 267543437 535086874 726189329 1070173748 1452378658 2904757316 5083325303 10166650606 20333301212