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85073187 = 3251112979
BaseRepresentation
bin1010001001000…
…01110100100011
312221002011110210
411010201310203
5133234320222
612235225203
72052052533
oct504416443
9187064423
1085073187
1144026821
12245a8203
1314818584
14b4274c3
157706d0c
hex5121d23

85073187 has 8 divisors (see below), whose sum is σ = 113883840. Its totient is φ = 56489000.

The previous prime is 85073167. The next prime is 85073201. The reversal of 85073187 is 78137058.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85073187 - 27 = 85073059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85073167) 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 7 ways as a sum of consecutive naturals, for example, 55737 + ... + 57242.

It is an arithmetic number, because the mean of its divisors is an integer number (14235480).

Almost surely, 285073187 is an apocalyptic number.

85073187 is a deficient number, since it is larger than the sum of its proper divisors (28810653).

85073187 is a wasteful number, since it uses less digits than its factorization.

85073187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113233.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 85073187 is about 9223.5127256377. The cubic root of 85073187 is about 439.8091234750.

The spelling of 85073187 in words is "eighty-five million, seventy-three thousand, one hundred eighty-seven".

Divisors: 1 3 251 753 112979 338937 28357729 85073187