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71054628 = 22317348307
BaseRepresentation
bin1000011110000…
…11010100100100
311221200221121220
410033003110210
5121142222003
611014540340
71521645231
oct417032444
9157627556
1071054628
1137121437
121b9676b0
131194a878
149618788
156388353
hex43c3524

71054628 has 24 divisors (see below), whose sum is σ = 175547232. Its totient is φ = 22291584.

The previous prime is 71054617. The next prime is 71054629. The reversal of 71054628 is 82645017.

It is not an unprimeable number, because it can be changed into a prime (71054629) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 173950 + ... + 174357.

It is an arithmetic number, because the mean of its divisors is an integer number (7314468).

Almost surely, 271054628 is an apocalyptic number.

It is an amenable number.

71054628 is an abundant number, since it is smaller than the sum of its proper divisors (104492604).

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

71054628 is a wasteful number, since it uses less digits than its factorization.

71054628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348331 (or 348329 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 71054628 is about 8429.3907253134. The cubic root of 71054628 is about 414.1879470560.

The spelling of 71054628 in words is "seventy-one million, fifty-four thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 348307 696614 1044921 1393228 2089842 4179684 5921219 11842438 17763657 23684876 35527314 71054628