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982005133 = 2917336649
BaseRepresentation
bin111010100010000…
…011010110001101
32112102211000210111
4322202003112031
54002343131013
6241235440021
733222622504
oct7242032615
92472730714
10982005133
11464352a9a
12234a56011
131285a9635
14945c583b
155b32973d
hex3a88358d

982005133 has 4 divisors (see below), whose sum is σ = 982344700. Its totient is φ = 981665568.

The previous prime is 982005127. The next prime is 982005137. The reversal of 982005133 is 331500289.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 331500289 = 1719500017.

It can be written as a sum of positive squares in 2 ways, for example, as 922822884 + 59182249 = 30378^2 + 7693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-982005133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 982005095 and 982005104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (982005137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165408 + ... + 171241.

It is an arithmetic number, because the mean of its divisors is an integer number (245586175).

Almost surely, 2982005133 is an apocalyptic number.

It is an amenable number.

982005133 is a deficient number, since it is larger than the sum of its proper divisors (339567).

982005133 is a wasteful number, since it uses less digits than its factorization.

982005133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339566.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 982005133 is about 31336.9611321838. The cubic root of 982005133 is about 993.9653674641.

The spelling of 982005133 in words is "nine hundred eighty-two million, five thousand, one hundred thirty-three".

Divisors: 1 2917 336649 982005133