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80506933 = 1319325939
BaseRepresentation
bin1001100110001…
…11000000110101
312121111011202021
410303013000311
5131102210213
611553313141
71665204043
oct463070065
9177434667
1080506933
1141498061
1222b657b1
13138aa050
14a999393
157103d8d
hex4cc7035

80506933 has 8 divisors (see below), whose sum is σ = 91263200. Its totient is φ = 70402608.

The previous prime is 80506919. The next prime is 80506949. The reversal of 80506933 is 33960508.

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

It is a cyclic number.

It is not a de Polignac number, because 80506933 - 25 = 80506901 is a prime.

It is a super-2 number, since 2×805069332 = 12962732522132978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80506973) 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, 162723 + ... + 163216.

It is an arithmetic number, because the mean of its divisors is an integer number (11407900).

Almost surely, 280506933 is an apocalyptic number.

It is an amenable number.

80506933 is a deficient number, since it is larger than the sum of its proper divisors (10756267).

80506933 is a wasteful number, since it uses less digits than its factorization.

80506933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325971.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 80506933 is about 8972.5655751296. The cubic root of 80506933 is about 431.7951507206.

The spelling of 80506933 in words is "eighty million, five hundred six thousand, nine hundred thirty-three".

Divisors: 1 13 19 247 325939 4237207 6192841 80506933