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20549244119040 = 2113457213192389
BaseRepresentation
bin1001010110000011111100…
…11001010110100000000000
32200202111012011011122210000
410223001332121112200000
510143134322443302130
6111412105321440000
74220430266012400
oct453017631264000
980674164148700
1020549244119040
116602981650a7a
12237a6b8340000
13b60a296c7c90
1451083564c800
152597edcee260
hex12b07e656800

20549244119040 has 5760 divisors, whose sum is σ = 102488978592000. Its totient is φ = 3884741296128.

The previous prime is 20549244118987. The next prime is 20549244119051. The reversal of 20549244119040 is 4091144294502.

20549244119040 is a `hidden beast` number, since 2 + 0 + 5 + 492 + 4 + 4 + 119 + 0 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (5760).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 230890383316 + ... + 230890383404.

It is an arithmetic number, because the mean of its divisors is an integer number (17793225450).

Almost surely, 220549244119040 is an apocalyptic number.

20549244119040 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 20549244119040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51244489296000).

20549244119040 is an abundant number, since it is smaller than the sum of its proper divisors (81939734472960).

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

20549244119040 is a wasteful number, since it uses less digits than its factorization.

20549244119040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 20549244119040 in words is "twenty trillion, five hundred forty-nine billion, two hundred forty-four million, one hundred nineteen thousand, forty".