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83005828 = 2220751457
BaseRepresentation
bin1001111001010…
…01000110000100
312210012010120221
410330221012010
5132222141303
612123034124
72025352333
oct474510604
9183163527
1083005828
1142944564
122396b944
1314273599
14b049d1a
1574494bd
hex4f29184

83005828 has 6 divisors (see below), whose sum is σ = 145260206. Its totient is φ = 41502912.

The previous prime is 83005823. The next prime is 83005829. The reversal of 83005828 is 82850038.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 69522244 + 13483584 = 8338^2 + 3672^2 .

It is a junction number, because it is equal to n+sod(n) for n = 83005793 and 83005802.

It is not an unprimeable number, because it can be changed into a prime (83005823) 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 as a sum of consecutive naturals, namely, 10375725 + ... + 10375732.

Almost surely, 283005828 is an apocalyptic number.

It is an amenable number.

83005828 is a deficient number, since it is larger than the sum of its proper divisors (62254378).

83005828 is a wasteful number, since it uses less digits than its factorization.

83005828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20751461 (or 20751459 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 83005828 is about 9110.7534265833. The cubic root of 83005828 is about 436.2172766045.

The spelling of 83005828 in words is "eighty-three million, five thousand, eight hundred twenty-eight".

Divisors: 1 2 4 20751457 41502914 83005828