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83238873 = 327746291
BaseRepresentation
bin1001111011000…
…01111111011001
312210121222021020
410331201333121
5132302120443
612132033053
72030342634
oct475417731
9183558236
1083238873
1142a93663
1223a62789
1314325693
14b0aac1b
157493583
hex4f61fd9

83238873 has 4 divisors (see below), whose sum is σ = 110985168. Its totient is φ = 55492580.

The previous prime is 83238821. The next prime is 83238893. The reversal of 83238873 is 37883238.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83238873 - 26 = 83238809 is a prime.

It is a super-3 number, since 3×832388733 (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (83238803) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13873143 + ... + 13873148.

It is an arithmetic number, because the mean of its divisors is an integer number (27746292).

Almost surely, 283238873 is an apocalyptic number.

It is an amenable number.

83238873 is a deficient number, since it is larger than the sum of its proper divisors (27746295).

83238873 is a wasteful number, since it uses less digits than its factorization.

83238873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27746294.

The product of its digits is 193536, while the sum is 42.

The square root of 83238873 is about 9123.5340192274. The cubic root of 83238873 is about 436.6251325671.

The spelling of 83238873 in words is "eighty-three million, two hundred thirty-eight thousand, eight hundred seventy-three".

Divisors: 1 3 27746291 83238873