Base | Representation |
---|---|
bin | 1010001001000… |
… | …11110010010000 |
3 | 12221002120111202 |
4 | 11010203302100 |
5 | 133240044412 |
6 | 12235330332 |
7 | 2052115145 |
oct | 504436220 |
9 | 187076452 |
10 | 85081232 |
11 | 44031875 |
12 | 245b09a8 |
13 | 1481c132 |
14 | b42a3cc |
15 | 77093c2 |
hex | 5123c90 |
85081232 has 40 divisors (see below), whose sum is σ = 176238720. Its totient is φ = 39691520.
The previous prime is 85081211. The next prime is 85081253. The reversal of 85081232 is 23218058.
It is an interprime number because it is at equal distance from previous prime (85081211) and next prime (85081253).
It is a junction number, because it is equal to n+sod(n) for n = 85081195 and 85081204.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12269 + ... + 17907.
It is an arithmetic number, because the mean of its divisors is an integer number (4405968).
Almost surely, 285081232 is an apocalyptic number.
85081232 is a gapful number since it is divisible by the number (82) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 85081232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88119360).
85081232 is an abundant number, since it is smaller than the sum of its proper divisors (91157488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
85081232 is a wasteful number, since it uses less digits than its factorization.
85081232 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5711 (or 5705 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 29.
The square root of 85081232 is about 9223.9488289994. The cubic root of 85081232 is about 439.8229866478.
The spelling of 85081232 in words is "eighty-five million, eighty-one thousand, two hundred thirty-two".
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