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85189300 = 22527131929
BaseRepresentation
bin1010001001111…
…10001010110100
312221022001202021
411010332022310
5133302024200
612241522524
72053045210
oct504761264
9187261667
1085189300
11440a5a89
1224643444
1314859391
14b457940
15772b41a
hex513e2b4

85189300 has 72 divisors (see below), whose sum is σ = 213111360. Its totient is φ = 28953600.

The previous prime is 85189297. The next prime is 85189337. The reversal of 85189300 is 398158.

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 23 ways as a sum of consecutive naturals, for example, 91236 + ... + 92164.

It is an arithmetic number, because the mean of its divisors is an integer number (2959880).

Almost surely, 285189300 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 85189300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106555680).

85189300 is an abundant number, since it is smaller than the sum of its proper divisors (127922060).

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

85189300 is a wasteful number, since it uses less digits than its factorization.

85189300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1074 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 85189300 is about 9229.8049816884. The cubic root of 85189300 is about 440.0091251551.

The spelling of 85189300 in words is "eighty-five million, one hundred eighty-nine thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 131 140 175 262 350 524 655 700 917 929 1310 1834 1858 2620 3275 3668 3716 4585 4645 6503 6550 9170 9290 13006 13100 18340 18580 22925 23225 26012 32515 45850 46450 65030 91700 92900 121699 130060 162575 243398 325150 486796 608495 650300 851893 1216990 1703786 2433980 3042475 3407572 4259465 6084950 8518930 12169900 17037860 21297325 42594650 85189300