Base | Representation |
---|---|
bin | 1001111100001… |
… | …10101001001101 |
3 | 12210220121012200 |
4 | 10332012221031 |
5 | 132321422010 |
6 | 12135152113 |
7 | 2031536430 |
oct | 476065115 |
9 | 183817180 |
10 | 83389005 |
11 | 43086437 |
12 | 23b15639 |
13 | 14378b0b |
14 | b109817 |
15 | 74c2cc0 |
hex | 4f86a4d |
83389005 has 48 divisors (see below), whose sum is σ = 173896320. Its totient is φ = 36111744.
The previous prime is 83389001. The next prime is 83389051. The reversal of 83389005 is 50098338.
It is not a de Polignac number, because 83389005 - 22 = 83389001 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (83389001) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 982 + ... + 12951.
It is an arithmetic number, because the mean of its divisors is an integer number (3622840).
Almost surely, 283389005 is an apocalyptic number.
It is an amenable number.
83389005 is an abundant number, since it is smaller than the sum of its proper divisors (90507315).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
83389005 is a wasteful number, since it uses less digits than its factorization.
83389005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13970 (or 13967 counting only the distinct ones).
The product of its (nonzero) digits is 25920, while the sum is 36.
The square root of 83389005 is about 9131.7580454149. The cubic root of 83389005 is about 436.8874780769.
The spelling of 83389005 in words is "eighty-three million, three hundred eighty-nine thousand, five".
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