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38745770112 = 2732731375971
BaseRepresentation
bin100100000101011011…
…011000100010000000
310201000021000001112200
4210011123120202000
51113322404120422
625444412153200
72541104416620
oct440533304200
9121007001480
1038745770112
1115482a82615
127613a68800
1338662815ba
141c37ba2880
15101b8382ac
hex9056d8880

38745770112 has 768 divisors, whose sum is σ = 139312742400. Its totient is φ = 10102579200.

The previous prime is 38745770069. The next prime is 38745770117. The reversal of 38745770112 is 21107754783.

38745770112 is a `hidden beast` number, since 3 + 8 + 74 + 577 + 0 + 1 + 1 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (38745770117) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 545715037 + ... + 545715107.

It is an arithmetic number, because the mean of its divisors is an integer number (181396800).

Almost surely, 238745770112 is an apocalyptic number.

38745770112 is a gapful number since it is divisible by the number (32) 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 38745770112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69656371200).

38745770112 is an abundant number, since it is smaller than the sum of its proper divisors (100566972288).

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

38745770112 is a wasteful number, since it uses less digits than its factorization.

38745770112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The spelling of 38745770112 in words is "thirty-eight billion, seven hundred forty-five million, seven hundred seventy thousand, one hundred twelve".