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82603073 = 721685777
BaseRepresentation
bin1001110110001…
…10110001000001
312202102200010002
410323012301001
5132121244243
612110245345
72022054200
oct473066101
9182380102
1082603073
1142699a03
12237b6855
1314162177
14ad83237
1573b9eb8
hex4ec6c41

82603073 has 6 divisors (see below), whose sum is σ = 96089346. Its totient is φ = 70802592.

The previous prime is 82603063. The next prime is 82603091. The reversal of 82603073 is 37030628.

It can be written as a sum of positive squares in only one way, i.e., 77299264 + 5303809 = 8792^2 + 2303^2 .

It is not a de Polignac number, because 82603073 - 216 = 82537537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82603063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 842840 + ... + 842937.

It is an arithmetic number, because the mean of its divisors is an integer number (16014891).

Almost surely, 282603073 is an apocalyptic number.

It is an amenable number.

82603073 is a deficient number, since it is larger than the sum of its proper divisors (13486273).

82603073 is a wasteful number, since it uses less digits than its factorization.

82603073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685791 (or 1685784 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 82603073 is about 9088.6232730816. The cubic root of 82603073 is about 435.5106048896.

The spelling of 82603073 in words is "eighty-two million, six hundred three thousand, seventy-three".

Divisors: 1 7 49 1685777 11800439 82603073