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83021119 = 1311973217
BaseRepresentation
bin1001111001011…
…00110100111111
312210012220120021
410330230310333
5132223133434
612123233011
72025445036
oct474546477
9183186507
1083021119
1142954aa5
1223978767
131427a52c
14b05171d
15744dcb4
hex4f2cd3f

83021119 has 8 divisors (see below), whose sum is σ = 84105648. Its totient is φ = 81943680.

The previous prime is 83021117. The next prime is 83021137. The reversal of 83021119 is 91112038.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83021119 - 21 = 83021117 is a prime.

It is a super-2 number, since 2×830211192 = 13785012400024322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83021093 and 83021102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83021111) 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 7 ways as a sum of consecutive naturals, for example, 24199 + ... + 27415.

It is an arithmetic number, because the mean of its divisors is an integer number (10513206).

Almost surely, 283021119 is an apocalyptic number.

83021119 is a deficient number, since it is larger than the sum of its proper divisors (1084529).

83021119 is a wasteful number, since it uses less digits than its factorization.

83021119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 83021119 is about 9111.5925611278. The cubic root of 83021119 is about 436.2440610243.

The spelling of 83021119 in words is "eighty-three million, twenty-one thousand, one hundred nineteen".

Divisors: 1 131 197 3217 25807 421427 633749 83021119