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85479141 = 31143591021
BaseRepresentation
bin1010001100001…
…00111011100101
312221211210100010
411012010323211
5133340313031
612252040433
72055363216
oct506047345
9187753303
1085479141
1144283820
1224763119
131492b297
14b4d140d
157787246
hex5184ee5

85479141 has 32 divisors (see below), whose sum is σ = 129507840. Its totient is φ = 49694400.

The previous prime is 85479133. The next prime is 85479151. The reversal of 85479141 is 14197458.

It is not a de Polignac number, because 85479141 - 23 = 85479133 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85479141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85479151) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 83211 + ... + 84231.

It is an arithmetic number, because the mean of its divisors is an integer number (4047120).

Almost surely, 285479141 is an apocalyptic number.

It is an amenable number.

85479141 is a deficient number, since it is larger than the sum of its proper divisors (44028699).

85479141 is a wasteful number, since it uses less digits than its factorization.

85479141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137.

The product of its digits is 40320, while the sum is 39.

The square root of 85479141 is about 9245.4930101104. The cubic root of 85479141 is about 440.5075771206.

The spelling of 85479141 in words is "eighty-five million, four hundred seventy-nine thousand, one hundred forty-one".

Divisors: 1 3 11 33 43 59 129 177 473 649 1021 1419 1947 2537 3063 7611 11231 27907 33693 43903 60239 83721 131709 180717 482933 662629 1448799 1987887 2590277 7770831 28493047 85479141