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80993595 = 3519727409
BaseRepresentation
bin1001101001111…
…01110100111011
312122101220022210
410310331310323
5131213243340
612011550203
72002301634
oct464756473
9178356283
1080993595
114179a761
122315b363
1313a1a707
14aa8488b
15719d180
hex4d3dd3b

80993595 has 16 divisors (see below), whose sum is σ = 130252320. Its totient is φ = 42975744.

The previous prime is 80993537. The next prime is 80993611. The reversal of 80993595 is 59539908.

It is not a de Polignac number, because 80993595 - 212 = 80989499 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10750 + ... + 16659.

It is an arithmetic number, because the mean of its divisors is an integer number (8140770).

Almost surely, 280993595 is an apocalyptic number.

80993595 is a deficient number, since it is larger than the sum of its proper divisors (49258725).

80993595 is a wasteful number, since it uses less digits than its factorization.

80993595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27614.

The product of its (nonzero) digits is 437400, while the sum is 48.

The square root of 80993595 is about 8999.6441596321. The cubic root of 80993595 is about 432.6634663367.

The spelling of 80993595 in words is "eighty million, nine hundred ninety-three thousand, five hundred ninety-five".

Divisors: 1 3 5 15 197 591 985 2955 27409 82227 137045 411135 5399573 16198719 26997865 80993595