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85899858 = 23115092557
BaseRepresentation
bin1010001111010…
…11101001010010
312222122011110020
411013223221102
5133442243413
612305044310
72062064622
oct507535122
9188564406
1085899858
1144540920
1224926696
1314a47925
14b5a0882
15781bc23
hex51eba52

85899858 has 32 divisors (see below), whose sum is σ = 187859520. Its totient is φ = 25968960.

The previous prime is 85899857. The next prime is 85899887.

85899858 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (85899857) 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, 32316 + ... + 34872.

It is an arithmetic number, because the mean of its divisors is an integer number (5870610).

Almost surely, 285899858 is an apocalyptic number.

85899858 is an abundant number, since it is smaller than the sum of its proper divisors (101959662).

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

85899858 is a wasteful number, since it uses less digits than its factorization.

85899858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082.

The product of its digits is 8294400, while the sum is 60.

The square root of 85899858 is about 9268.2176280016. The cubic root of 85899858 is about 441.2291012955.

The spelling of 85899858 in words is "eighty-five million, eight hundred ninety-nine thousand, eight hundred fifty-eight".