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85511214 = 235175949
BaseRepresentation
bin1010001100011…
…00110000101110
312221220102100000
411012030300232
5133342324324
612252445130
72055555555
oct506146056
9187812300
1085511214
11442a5928
12247797a6
131493ca69
14b4dcd9c
1577919c9
hex518cc2e

85511214 has 24 divisors (see below), whose sum is σ = 192137400. Its totient is φ = 28503576.

The previous prime is 85511213. The next prime is 85511221. The reversal of 85511214 is 41211558.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85511213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87489 + ... + 88460.

It is an arithmetic number, because the mean of its divisors is an integer number (8005725).

Almost surely, 285511214 is an apocalyptic number.

85511214 is an abundant number, since it is smaller than the sum of its proper divisors (106626186).

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

85511214 is a wasteful number, since it uses less digits than its factorization.

85511214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175966 (or 175954 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 85511214 is about 9247.2273682440. The cubic root of 85511214 is about 440.5626651521.

The spelling of 85511214 in words is "eighty-five million, five hundred eleven thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 486 175949 351898 527847 1055694 1583541 3167082 4750623 9501246 14251869 28503738 42755607 85511214