Search a number
-
+
85102185 = 35723131269
BaseRepresentation
bin1010001001010…
…00111001101001
312221010122020210
411010220321221
5133241232220
612240011333
72052233220
oct504507151
9187118223
1085102185
1144046593
1224600b49
131482882c
14b433cb7
1577106e0
hex5128e69

85102185 has 64 divisors (see below), whose sum is σ = 164229120. Its totient is φ = 36791040.

The previous prime is 85102181. The next prime is 85102189. The reversal of 85102185 is 58120158.

It is an interprime number because it is at equal distance from previous prime (85102181) and next prime (85102189).

It is not a de Polignac number, because 85102185 - 22 = 85102181 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85102181) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 316231 + ... + 316499.

It is an arithmetic number, because the mean of its divisors is an integer number (2566080).

Almost surely, 285102185 is an apocalyptic number.

It is an amenable number.

85102185 is a deficient number, since it is larger than the sum of its proper divisors (79126935).

85102185 is a wasteful number, since it uses less digits than its factorization.

85102185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438.

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 85102185 is about 9225.0845524580. The cubic root of 85102185 is about 439.8590888308.

The spelling of 85102185 in words is "eighty-five million, one hundred two thousand, one hundred eighty-five".

Divisors: 1 3 5 7 15 21 23 35 69 105 115 131 161 269 345 393 483 655 805 807 917 1345 1883 1965 2415 2751 3013 4035 4585 5649 6187 9039 9415 13755 15065 18561 21091 28245 30935 35239 43309 45195 63273 92805 105455 105717 129927 176195 216545 246673 316365 528585 649635 740019 810497 1233365 2431491 3700095 4052485 5673479 12157455 17020437 28367395 85102185