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82423769 = 1712833779
BaseRepresentation
bin1001110100110…
…10111111011001
312202002120011012
410322122333121
5132100030034
612102343305
72020406351
oct472327731
9182076135
1082423769
114258721a
122372ab35
13140cb67c
14ad37b61
157381cce
hex4e9afd9

82423769 has 8 divisors (see below), whose sum is σ = 87363360. Its totient is φ = 77494336.

The previous prime is 82423739. The next prime is 82423799. The reversal of 82423769 is 96732428.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82423739) and next prime (82423799).

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 82423769 - 216 = 82358233 is a prime.

It is a super-2 number, since 2×824237692 = 13587355392330722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82423739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19922 + ... + 23700.

It is an arithmetic number, because the mean of its divisors is an integer number (10920420).

Almost surely, 282423769 is an apocalyptic number.

It is an amenable number.

82423769 is a deficient number, since it is larger than the sum of its proper divisors (4939591).

82423769 is a wasteful number, since it uses less digits than its factorization.

82423769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079.

The product of its digits is 145152, while the sum is 41.

The square root of 82423769 is about 9078.7537140293. The cubic root of 82423769 is about 435.1952600299.

The spelling of 82423769 in words is "eighty-two million, four hundred twenty-three thousand, seven hundred sixty-nine".

Divisors: 1 17 1283 3779 21811 64243 4848457 82423769