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20844563040000 = 28325474348091
BaseRepresentation
bin1001011110101010000001…
…10001101000011100000000
32201210201110102211020021100
410233111000301220130000
510213004131114240000
6112155505435054400
74250653463303220
oct457250061503400
981721412736240
1020844563040000
116707147468307
122407995ba1400
13b8283178c01b
14520c4cbca080
15262335551a00
hex12f540c68700

20844563040000 has 1080 divisors, whose sum is σ = 87827554086272. Its totient is φ = 4653573120000.

The previous prime is 20844563039999. The next prime is 20844563040001. The reversal of 20844563040000 is 4036544802.

20844563040000 is a `hidden beast` number, since 208 + 4 + 45 + 6 + 3 + 0 + 400 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (20844563039999) and next prime (20844563040001).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20844563040001) by changing a digit.

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 119 ways as a sum of consecutive naturals, for example, 433415955 + ... + 433464045.

Almost surely, 220844563040000 is an apocalyptic number.

20844563040000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20844563040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43913777043136).

20844563040000 is an abundant number, since it is smaller than the sum of its proper divisors (66982991046272).

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

20844563040000 is an equidigital number, since it uses as much as digits as its factorization.

20844563040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48183 (or 48151 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 20844563040000 its reverse (4036544802), we get a palindrome (20848599584802).

The spelling of 20844563040000 in words is "twenty trillion, eight hundred forty-four billion, five hundred sixty-three million, forty thousand".