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82939953 = 3109253639
BaseRepresentation
bin1001111000110…
…01000000110001
312210001210020010
410330121000301
5132213034303
612121405133
72024656305
oct474310061
9183053203
1082939953
11428aa018
12239397a9
131424c5c5
14b02dd05
157434c03
hex4f19031

82939953 has 8 divisors (see below), whose sum is σ = 111601600. Its totient is φ = 54785808.

The previous prime is 82939949. The next prime is 82939979. The reversal of 82939953 is 35993928.

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

It is not a de Polignac number, because 82939953 - 22 = 82939949 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82939933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126493 + ... + 127146.

It is an arithmetic number, because the mean of its divisors is an integer number (13950200).

Almost surely, 282939953 is an apocalyptic number.

It is an amenable number.

82939953 is a deficient number, since it is larger than the sum of its proper divisors (28661647).

82939953 is a wasteful number, since it uses less digits than its factorization.

82939953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253751.

The product of its digits is 524880, while the sum is 48.

The square root of 82939953 is about 9107.1374756287. The cubic root of 82939953 is about 436.1018492949.

The spelling of 82939953 in words is "eighty-two million, nine hundred thirty-nine thousand, nine hundred fifty-three".

Divisors: 1 3 109 327 253639 760917 27646651 82939953