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38736938240 = 285731113617
BaseRepresentation
bin100100000100111001…
…101100010100000000
310200222122101100111022
4210010321230110000
51113313124010430
625443455005012
72540636354000
oct440471542400
9120878340438
1038736938240
1115478aa0050
127610b09768
1338644ab640
141c36944000
15101ab914e5
hex904e6c500

38736938240 has 576 divisors, whose sum is σ = 127329753600. Its totient is φ = 11127029760.

The previous prime is 38736938203. The next prime is 38736938267. The reversal of 38736938240 is 4283963783.

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, 62782412 + ... + 62783028.

It is an arithmetic number, because the mean of its divisors is an integer number (221058600).

Almost surely, 238736938240 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 38736938240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63664876800).

38736938240 is an abundant number, since it is smaller than the sum of its proper divisors (88592815360).

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

38736938240 is a wasteful number, since it uses less digits than its factorization.

38736938240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 53.

The spelling of 38736938240 in words is "thirty-eight billion, seven hundred thirty-six million, nine hundred thirty-eight thousand, two hundred forty".