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82195043 = 731378779
BaseRepresentation
bin1001110011000…
…11001001100011
312201122221101212
410321203021203
5132020220133
612053420335
72015434460
oct471431143
9181587355
1082195043
1142440397
122363a6ab
131404b528
14acb8667
157339148
hex4e63263

82195043 has 8 divisors (see below), whose sum is σ = 96967680. Its totient is φ = 68180040.

The previous prime is 82195039. The next prime is 82195049. The reversal of 82195043 is 34059128.

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 82195043 - 22 = 82195039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82195049) 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 7 ways as a sum of consecutive naturals, for example, 189173 + ... + 189606.

It is an arithmetic number, because the mean of its divisors is an integer number (12120960).

Almost surely, 282195043 is an apocalyptic number.

82195043 is a deficient number, since it is larger than the sum of its proper divisors (14772637).

82195043 is a wasteful number, since it uses less digits than its factorization.

82195043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378817.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 82195043 is about 9066.1481898323. The cubic root of 82195043 is about 434.7923314030.

The spelling of 82195043 in words is "eighty-two million, one hundred ninety-five thousand, forty-three".

Divisors: 1 7 31 217 378779 2651453 11742149 82195043