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85210008 = 23313535153
BaseRepresentation
bin1010001010000…
…11001110011000
312221100010011020
411011003032120
5133303210013
612242202440
72053162452
oct505031630
9187303136
1085210008
114410a5a4
1224653420
1314865930
14b4612d2
157732623
hex5143398

85210008 has 64 divisors (see below), whose sum is σ = 233785440. Its totient is φ = 25718784.

The previous prime is 85210007. The next prime is 85210039. The reversal of 85210008 is 80001258.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 85210008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85210007) 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 15 ways as a sum of consecutive naturals, for example, 13960 + ... + 19112.

Almost surely, 285210008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85210008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116892720).

85210008 is an abundant number, since it is smaller than the sum of its proper divisors (148575432).

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

85210008 is a wasteful number, since it uses less digits than its factorization.

85210008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228 (or 5224 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 85210008 is about 9230.9267140412. The cubic root of 85210008 is about 440.0447750578.

The spelling of 85210008 in words is "eighty-five million, two hundred ten thousand, eight".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 53 78 104 106 156 159 212 312 318 424 636 689 1272 1378 2067 2756 4134 5153 5512 8268 10306 15459 16536 20612 30918 41224 61836 66989 123672 133978 200967 267956 273109 401934 535912 546218 803868 819327 1092436 1607736 1638654 2184872 3277308 3550417 6554616 7100834 10651251 14201668 21302502 28403336 42605004 85210008