Base | Representation |
---|---|
bin | 1010000010000… |
… | …01011001001010 |
3 | 12212100110111020 |
4 | 11001001121022 |
5 | 133020411210 |
6 | 12203413310 |
7 | 2041203510 |
oct | 501013112 |
9 | 185313436 |
10 | 84153930 |
11 | 43559103 |
12 | 24224236 |
13 | 14586033 |
14 | b2684b0 |
15 | 75c4770 |
hex | 504164a |
84153930 has 64 divisors (see below), whose sum is σ = 235208448. Its totient is φ = 18869760.
The previous prime is 84153929. The next prime is 84153973. The reversal of 84153930 is 3935148.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 84153891 and 84153900.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7350 + ... + 14910.
It is an arithmetic number, because the mean of its divisors is an integer number (3675132).
Almost surely, 284153930 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 84153930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117604224).
84153930 is an abundant number, since it is smaller than the sum of its proper divisors (151054518).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
84153930 is a wasteful number, since it uses less digits than its factorization.
84153930 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7631.
The product of its (nonzero) digits is 12960, while the sum is 33.
The square root of 84153930 is about 9173.5451162569. The cubic root of 84153930 is about 438.2192663749.
The spelling of 84153930 in words is "eighty-four million, one hundred fifty-three thousand, nine hundred thirty".
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