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83393317 = 731384301
BaseRepresentation
bin1001111100001…
…11101100100101
312210220211010101
410332013230211
5132322041232
612135224101
72031555130
oct476075445
9183824111
1083393317
11430896a7
1223b18031
131437aa77
14b10b217
1574c41e7
hex4f87b25

83393317 has 8 divisors (see below), whose sum is σ = 98381312. Its totient is φ = 69174000.

The previous prime is 83393311. The next prime is 83393333. The reversal of 83393317 is 71339338.

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

It is not a de Polignac number, because 83393317 - 23 = 83393309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83393311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191934 + ... + 192367.

It is an arithmetic number, because the mean of its divisors is an integer number (12297664).

Almost surely, 283393317 is an apocalyptic number.

It is an amenable number.

83393317 is a deficient number, since it is larger than the sum of its proper divisors (14987995).

83393317 is a wasteful number, since it uses less digits than its factorization.

83393317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384339.

The product of its digits is 40824, while the sum is 37.

The square root of 83393317 is about 9131.9941414786. The cubic root of 83393317 is about 436.8950083516.

It can be divided in two parts, 8339331 and 7, that added together give a palindrome (8339338).

The spelling of 83393317 in words is "eighty-three million, three hundred ninety-three thousand, three hundred seventeen".

Divisors: 1 7 31 217 384301 2690107 11913331 83393317