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83198039 = 413920101
BaseRepresentation
bin1001111010110…
…00000001010111
312210112220020212
410331120001113
5132244314124
612131120035
72030112611
oct475300127
9183486225
1083198039
1142a65a11
1223a4301b
131430cc12
14b099db1
15748640e
hex4f58057

83198039 has 4 divisors (see below), whose sum is σ = 83222280. Its totient is φ = 83173800.

The previous prime is 83198021. The next prime is 83198041. The reversal of 83198039 is 93089138.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83198039 - 216 = 83132503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83197987 and 83198005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83198069) 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, 5912 + ... + 14189.

It is an arithmetic number, because the mean of its divisors is an integer number (20805570).

Almost surely, 283198039 is an apocalyptic number.

83198039 is a deficient number, since it is larger than the sum of its proper divisors (24241).

83198039 is a wasteful number, since it uses less digits than its factorization.

83198039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24240.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 83198039 is about 9121.2959057362. The cubic root of 83198039 is about 436.5537233554.

The spelling of 83198039 in words is "eighty-three million, one hundred ninety-eight thousand, thirty-nine".

Divisors: 1 4139 20101 83198039