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80609235 = 357767707
BaseRepresentation
bin1001100110111…
…11111111010011
312121200101002020
410303133333103
5131113443420
611555422523
71666111230
oct463377723
9177611066
1080609235
1141557a03
1222bb4a43
1313914795
14a9c4787
157124340
hex4cdffd3

80609235 has 16 divisors (see below), whose sum is σ = 147399936. Its totient is φ = 36849888.

The previous prime is 80609233. The next prime is 80609251. The reversal of 80609235 is 53290608.

It is a happy number.

It is not a de Polignac number, because 80609235 - 21 = 80609233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80609196 and 80609205.

It is not an unprimeable number, because it can be changed into a prime (80609233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383749 + ... + 383958.

It is an arithmetic number, because the mean of its divisors is an integer number (9212496).

Almost surely, 280609235 is an apocalyptic number.

80609235 is a deficient number, since it is larger than the sum of its proper divisors (66790701).

80609235 is a wasteful number, since it uses less digits than its factorization.

80609235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767722.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 80609235 is about 8978.2645873242. The cubic root of 80609235 is about 431.9779706273.

The spelling of 80609235 in words is "eighty million, six hundred nine thousand, two hundred thirty-five".

Divisors: 1 3 5 7 15 21 35 105 767707 2303121 3838535 5373949 11515605 16121847 26869745 80609235