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20631004132024 = 231113435915314643
BaseRepresentation
bin1001011000011100001111…
…01011000011001010111000
32201001022020011001122201001
410230032013223003022320
510201004244024211044
6111513430310334344
74226353341446236
oct454160753031270
981038204048631
1020631004132024
116634617a8a940
12239251565a3b4
13b6865935c1a0
14514790051956
1525b9d6a782d4
hex12c387ac32b8

20631004132024 has 256 divisors, whose sum is σ = 47332064102400. Its totient is φ = 8304530572800.

The previous prime is 20631004131989. The next prime is 20631004132031. The reversal of 20631004132024 is 42023140013602.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20631004131983 and 20631004132001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4443461847 + ... + 4443466489.

It is an arithmetic number, because the mean of its divisors is an integer number (184890875400).

Almost surely, 220631004132024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20631004132024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23666032051200).

20631004132024 is an abundant number, since it is smaller than the sum of its proper divisors (26701059970376).

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

20631004132024 is a wasteful number, since it uses less digits than its factorization.

20631004132024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6306 (or 6302 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 20631004132024 its reverse (42023140013602), we get a palindrome (62654144145626).

The spelling of 20631004132024 in words is "twenty trillion, six hundred thirty-one billion, four million, one hundred thirty-two thousand, twenty-four".