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39145088900 = 2252391450889
BaseRepresentation
bin100100011101001110…
…101010011110000100
310202001002101112221102
4210131032222132010
51120132120321100
625552155035232
72554023523421
oct443516523604
9122032345842
1039145088900
1115668422745
12770573bb18
1338cac14ac8
141c74c2ad48
151041914cd5
hex91d3aa784

39145088900 has 18 divisors (see below), whose sum is σ = 84944843130. Its totient is φ = 15658035520.

The previous prime is 39145088869. The next prime is 39145088911. The reversal of 39145088900 is 988054193.

It can be written as a sum of positive squares in 3 ways, for example, as 12421994116 + 26723094784 = 111454^2 + 163472^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 195725345 + ... + 195725544.

Almost surely, 239145088900 is an apocalyptic number.

It is an amenable number.

39145088900 is an abundant number, since it is smaller than the sum of its proper divisors (45799754230).

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

39145088900 is a wasteful number, since it uses less digits than its factorization.

39145088900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391450903 (or 391450896 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 47.

The spelling of 39145088900 in words is "thirty-nine billion, one hundred forty-five million, eighty-eight thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 391450889 782901778 1565803556 1957254445 3914508890 7829017780 9786272225 19572544450 39145088900