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10128972672 = 2733721343107
BaseRepresentation
bin10010110111011101…
…11101101110000000
3222010220110010101000
421123232331232000
5131221004111142
64353031012000
7506001563400
oct113356755600
928126403330
1010128972672
1143285a50a5
121b6820a000
13c55636470
146c1336800
153e438714c
hex25bbbdb80

10128972672 has 768 divisors, whose sum is σ = 38679379200. Its totient is φ = 2584866816.

The previous prime is 10128972671. The next prime is 10128972701. The reversal of 10128972672 is 27627982101.

It is a happy number.

10128972672 is a `hidden beast` number, since 101 + 289 + 7 + 267 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10128972671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 94663243 + ... + 94663349.

It is an arithmetic number, because the mean of its divisors is an integer number (50363775).

Almost surely, 210128972672 is an apocalyptic number.

10128972672 is a gapful number since it is divisible by the number (12) 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 10128972672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19339689600).

10128972672 is an abundant number, since it is smaller than the sum of its proper divisors (28550406528).

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

10128972672 is a wasteful number, since it uses less digits than its factorization.

10128972672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 10128972672 in words is "ten billion, one hundred twenty-eight million, nine hundred seventy-two thousand, six hundred seventy-two".