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83080081 = 717776679
BaseRepresentation
bin1001111001110…
…11001110010001
312210022220110001
410330323032101
5132232030311
612124410001
72026111660
oct474731621
9183286401
1083080081
1142995327
12239a6901
131429b316
14b068dd7
1574614c1
hex4f3b391

83080081 has 8 divisors (see below), whose sum is σ = 95016320. Its totient is φ = 71160768.

The previous prime is 83080079. The next prime is 83080091. The reversal of 83080081 is 18008038.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83080081 - 21 = 83080079 is a prime.

It is a super-2 number, since 2×830800812 = 13804599717933122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83080021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9100 + ... + 15778.

It is an arithmetic number, because the mean of its divisors is an integer number (11877040).

Almost surely, 283080081 is an apocalyptic number.

It is an amenable number.

83080081 is a deficient number, since it is larger than the sum of its proper divisors (11936239).

83080081 is a wasteful number, since it uses less digits than its factorization.

83080081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8463.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 83080081 is about 9114.8275353953. The cubic root of 83080081 is about 436.3473107989.

The spelling of 83080081 in words is "eighty-three million, eighty thousand, eighty-one".

Divisors: 1 7 1777 6679 12439 46753 11868583 83080081