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71054128 = 2418732371
BaseRepresentation
bin1000011110000…
…11001100110000
311221200220221101
410033003030300
5121142213003
611014534144
71521643615
oct417031460
9157626841
1071054128
1137121022
121b967354
131194a582
14961850c
15638811d
hex43c3330

71054128 has 20 divisors (see below), whose sum is σ = 137798968. Its totient is φ = 35493120.

The previous prime is 71054119. The next prime is 71054131. The reversal of 71054128 is 82145017.

It is a junction number, because it is equal to n+sod(n) for n = 71054096 and 71054105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28783 + ... + 31153.

Almost surely, 271054128 is an apocalyptic number.

It is an amenable number.

71054128 is a deficient number, since it is larger than the sum of its proper divisors (66744840).

71054128 is a wasteful number, since it uses less digits than its factorization.

71054128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252 (or 4246 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 71054128 is about 8429.3610671272. The cubic root of 71054128 is about 414.1869755291.

The spelling of 71054128 in words is "seventy-one million, fifty-four thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 1873 2371 3746 4742 7492 9484 14984 18968 29968 37936 4440883 8881766 17763532 35527064 71054128