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85458250 = 253794327
BaseRepresentation
bin1010001011111…
…11110101001010
312221210201200101
411011333311022
5133334131000
612251400014
72055245263
oct505776512
9187721611
1085458250
114426a059
122475300a
1314921917
14b4c796a
157780e6a
hex517fd4a

85458250 has 32 divisors (see below), whose sum is σ = 162040320. Its totient is φ = 33742800.

The previous prime is 85458239. The next prime is 85458251. The reversal of 85458250 is 5285458.

It is a super-3 number, since 3×854582503 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (85458251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17587 + ... + 21913.

It is an arithmetic number, because the mean of its divisors is an integer number (5063760).

Almost surely, 285458250 is an apocalyptic number.

85458250 is a deficient number, since it is larger than the sum of its proper divisors (76582070).

85458250 is a wasteful number, since it uses less digits than its factorization.

85458250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423 (or 4413 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 37.

The square root of 85458250 is about 9244.3631473455. The cubic root of 85458250 is about 440.4716876880.

The spelling of 85458250 in words is "eighty-five million, four hundred fifty-eight thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 79 125 158 250 395 790 1975 3950 4327 8654 9875 19750 21635 43270 108175 216350 341833 540875 683666 1081750 1709165 3418330 8545825 17091650 42729125 85458250