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80795421 = 3372914741
BaseRepresentation
bin1001101000011…
…01011100011101
312122000211111000
410310031130131
5131140423141
612003420513
72000515110
oct464153435
9178024430
1080795421
1141674883
1223084739
131397b455
14aa32577
15715e5b6
hex4d0d71d

80795421 has 32 divisors (see below), whose sum is σ = 141523200. Its totient is φ = 44573760.

The previous prime is 80795411. The next prime is 80795423. The reversal of 80795421 is 12459708.

It is not a de Polignac number, because 80795421 - 211 = 80793373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80795423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1890 + ... + 12851.

It is an arithmetic number, because the mean of its divisors is an integer number (4422600).

Almost surely, 280795421 is an apocalyptic number.

It is an amenable number.

80795421 is a deficient number, since it is larger than the sum of its proper divisors (60727779).

80795421 is a wasteful number, since it uses less digits than its factorization.

80795421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14786 (or 14780 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 80795421 is about 8988.6273145570. The cubic root of 80795421 is about 432.3102998248.

The spelling of 80795421 in words is "eighty million, seven hundred ninety-five thousand, four hundred twenty-one".

Divisors: 1 3 7 9 21 27 29 63 87 189 203 261 609 783 1827 5481 14741 44223 103187 132669 309561 398007 427489 928683 1282467 2786049 2992423 3847401 8977269 11542203 26931807 80795421