Base | Representation |
---|---|
bin | 1001111100001… |
… | …01011001000101 |
3 | 12210220100011202 |
4 | 10332011121011 |
5 | 132321241002 |
6 | 12135112245 |
7 | 2031515453 |
oct | 476053105 |
9 | 183810152 |
10 | 83383877 |
11 | 430825a5 |
12 | 23b12685 |
13 | 14376695 |
14 | b1079d3 |
15 | 74c1502 |
hex | 4f85645 |
83383877 has 4 divisors (see below), whose sum is σ = 83461260. Its totient is φ = 83306496.
The previous prime is 83383847. The next prime is 83383879. The reversal of 83383877 is 77838338.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77838338 = 2 ⋅38919169.
It can be written as a sum of positive squares in 2 ways, for example, as 47969476 + 35414401 = 6926^2 + 5951^2 .
It is a cyclic number.
It is not a de Polignac number, because 83383877 - 28 = 83383621 is a prime.
It is a super-2 number, since 2×833838772 = 13905741887102258, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (83383879) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37052 + ... + 39237.
It is an arithmetic number, because the mean of its divisors is an integer number (20865315).
Almost surely, 283383877 is an apocalyptic number.
It is an amenable number.
83383877 is a deficient number, since it is larger than the sum of its proper divisors (77383).
83383877 is a wasteful number, since it uses less digits than its factorization.
83383877 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 77382.
The product of its digits is 677376, while the sum is 47.
The square root of 83383877 is about 9131.4772627434. The cubic root of 83383877 is about 436.8785224402.
The spelling of 83383877 in words is "eighty-three million, three hundred eighty-three thousand, eight hundred seventy-seven".
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