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7057122128 = 24763010019
BaseRepresentation
bin1101001001010001…
…10010001101010000
3200012211012221121122
412210220302031100
5103423110402003
63124134341412
7336611356040
oct64450621520
920184187548
107057122128
112aa161a341
12144b4ba868
138860b6014
144ad389720
152b484e238
hex1a4a32350

7057122128 has 20 divisors (see below), whose sum is σ = 15626484960. Its totient is φ = 3024480864.

The previous prime is 7057122119. The next prime is 7057122143. The reversal of 7057122128 is 8212217507.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31504898 + ... + 31505121.

It is an arithmetic number, because the mean of its divisors is an integer number (781324248).

Almost surely, 27057122128 is an apocalyptic number.

It is an amenable number.

7057122128 is an abundant number, since it is smaller than the sum of its proper divisors (8569362832).

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

7057122128 is a wasteful number, since it uses less digits than its factorization.

7057122128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63010034 (or 63010028 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 7057122128 is about 84006.6790677979. The cubic root of 7057122128 is about 1918.1204595674.

The spelling of 7057122128 in words is "seven billion, fifty-seven million, one hundred twenty-two thousand, one hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 63010019 126020038 252040076 441070133 504080152 882140266 1008160304 1764280532 3528561064 7057122128