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85231016 = 23137431103
BaseRepresentation
bin1010001010010…
…00010110101000
312221101011222022
411011020112220
5133304343031
612242444012
72053310633
oct505102650
9187334868
1085231016
1144124362
1224663608
1314872370
14b468c1a
15773897b
hex51485a8

85231016 has 32 divisors (see below), whose sum is σ = 172488960. Its totient is φ = 39248832.

The previous prime is 85231001. The next prime is 85231019. The reversal of 85231016 is 61013258.

It is a super-3 number, since 3×852310163 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (85231019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76721 + ... + 77823.

It is an arithmetic number, because the mean of its divisors is an integer number (5390280).

Almost surely, 285231016 is an apocalyptic number.

It is an amenable number.

85231016 is an abundant number, since it is smaller than the sum of its proper divisors (87257944).

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

85231016 is a wasteful number, since it uses less digits than its factorization.

85231016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865 (or 1861 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 85231016 is about 9232.0645578332. The cubic root of 85231016 is about 440.0809355247.

The spelling of 85231016 in words is "eighty-five million, two hundred thirty-one thousand, sixteen".

Divisors: 1 2 4 8 13 26 52 104 743 1103 1486 2206 2972 4412 5944 8824 9659 14339 19318 28678 38636 57356 77272 114712 819529 1639058 3278116 6556232 10653877 21307754 42615508 85231016