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83130318 = 2324618351
BaseRepresentation
bin1001111010001…
…11011111001110
312210102110100200
410331013133032
5132240132233
612125434330
72026411305
oct475073716
9183373320
1083130318
1142a1a047
1223a0b9a6
13142b814b
14b07d43c
157471313
hex4f477ce

83130318 has 12 divisors (see below), whose sum is σ = 180115728. Its totient is φ = 27710100.

The previous prime is 83130293. The next prime is 83130343. The reversal of 83130318 is 81303138.

It is an interprime number because it is at equal distance from previous prime (83130293) and next prime (83130343).

It is a super-2 number, since 2×831303182 = 13821299541562248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83130291 and 83130300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2309158 + ... + 2309193.

It is an arithmetic number, because the mean of its divisors is an integer number (15009644).

Almost surely, 283130318 is an apocalyptic number.

83130318 is an abundant number, since it is smaller than the sum of its proper divisors (96985410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83130318 is a wasteful number, since it uses less digits than its factorization.

83130318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618359 (or 4618356 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 83130318 is about 9117.5829033796. The cubic root of 83130318 is about 436.4352434807.

The spelling of 83130318 in words is "eighty-three million, one hundred thirty thousand, three hundred eighteen".

Divisors: 1 2 3 6 9 18 4618351 9236702 13855053 27710106 41565159 83130318