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80829783 = 328981087
BaseRepresentation
bin1001101000101…
…01110101010111
312122002120121200
410310111311113
5131143023113
612004243543
72001020226
oct464256527
9178076550
1080829783
1141698681
12230a05b3
1313990c98
14aa40cbd
157169873
hex4d15d57

80829783 has 6 divisors (see below), whose sum is σ = 116754144. Its totient is φ = 53886516.

The previous prime is 80829773. The next prime is 80829811. The reversal of 80829783 is 38792808.

It is not a de Polignac number, because 80829783 - 24 = 80829767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80829703) 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, 4490535 + ... + 4490552.

It is an arithmetic number, because the mean of its divisors is an integer number (19459024).

Almost surely, 280829783 is an apocalyptic number.

80829783 is a deficient number, since it is larger than the sum of its proper divisors (35924361).

80829783 is a wasteful number, since it uses less digits than its factorization.

80829783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8981093 (or 8981090 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 80829783 is about 8990.5385266957. The cubic root of 80829783 is about 432.3715778069.

The spelling of 80829783 in words is "eighty million, eight hundred twenty-nine thousand, seven hundred eighty-three".

Divisors: 1 3 9 8981087 26943261 80829783