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8125941870 = 2355101113293
BaseRepresentation
bin1111001000101100…
…00000100001101110
3202222022101121200000
413210112000201232
5113120220114440
63422155045130
7405240236424
oct74426004156
922868347600
108125941870
11349a978442
1216a94407a6
139c666a737
145712cd114
153285c6730
hex1e458086e

8125941870 has 192 divisors, whose sum is σ = 22398876864. Its totient is φ = 2119219200.

The previous prime is 8125941851. The next prime is 8125941881. The reversal of 8125941870 is 781495218.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 27733444 + ... + 27733736.

It is an arithmetic number, because the mean of its divisors is an integer number (116660817).

Almost surely, 28125941870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8125941870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11199438432).

8125941870 is an abundant number, since it is smaller than the sum of its proper divisors (14272934994).

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

8125941870 is a wasteful number, since it uses less digits than its factorization.

8125941870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 8125941870 is about 90144.0062899359. The cubic root of 8125941870 is about 2010.4405583642.

The spelling of 8125941870 in words is "eight billion, one hundred twenty-five million, nine hundred forty-one thousand, eight hundred seventy".