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82718803 = 67218427
BaseRepresentation
bin1001110111000…
…11000001010011
312202122112212101
410323203001103
5132134000203
612112541231
72023045456
oct473430123
9182575771
1082718803
1142768952
1223851817
13141a2a4b
14adb349d
1573de41d
hex4ee3053

82718803 has 6 divisors (see below), whose sum is σ = 83976396. Its totient is φ = 81479772.

The previous prime is 82718789. The next prime is 82718809. The reversal of 82718803 is 30881728.

It is not a de Polignac number, because 82718803 - 217 = 82587731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82718809) 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 5 ways as a sum of consecutive naturals, for example, 4725 + ... + 13702.

It is an arithmetic number, because the mean of its divisors is an integer number (13996066).

Almost surely, 282718803 is an apocalyptic number.

82718803 is a deficient number, since it is larger than the sum of its proper divisors (1257593).

82718803 is an equidigital number, since it uses as much as digits as its factorization.

82718803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18561 (or 18494 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 82718803 is about 9094.9877954838. The cubic root of 82718803 is about 435.7138988696.

It can be divided in two parts, 82718 and 803, that added together give a 4-th power (83521 = 174).

The spelling of 82718803 in words is "eighty-two million, seven hundred eighteen thousand, eight hundred three".

Divisors: 1 67 4489 18427 1234609 82718803