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82933643 = 13103241257
BaseRepresentation
bin1001111000101…
…11011110001011
312210001110120102
410330113132023
5132212334033
612121320015
72024632022
oct474273613
9183043512
1082933643
11428a5301
122393600b
1314249780
14b02b8b9
157432de8
hex4f1778b

82933643 has 16 divisors (see below), whose sum is σ = 90906816. Its totient is φ = 75202560.

The previous prime is 82933639. The next prime is 82933673. The reversal of 82933643 is 34633928.

It is a cyclic number.

It is not a de Polignac number, because 82933643 - 22 = 82933639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82933597 and 82933606.

It is not an unprimeable number, because it can be changed into a prime (82933603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322571 + ... + 322827.

It is an arithmetic number, because the mean of its divisors is an integer number (5681676).

Almost surely, 282933643 is an apocalyptic number.

82933643 is a deficient number, since it is larger than the sum of its proper divisors (7973173).

82933643 is a wasteful number, since it uses less digits than its factorization.

82933643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614.

The product of its digits is 93312, while the sum is 38.

The square root of 82933643 is about 9106.7910374621. The cubic root of 82933643 is about 436.0907895971.

The spelling of 82933643 in words is "eighty-two million, nine hundred thirty-three thousand, six hundred forty-three".

Divisors: 1 13 103 241 257 1339 3133 3341 24823 26471 61937 322699 344123 805181 6379511 82933643