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80584431 = 326861477
BaseRepresentation
bin1001100110110…
…01111011101111
312121122010001120
410303121323233
5131112200211
611555112023
71665646014
oct463317357
9177563046
1080584431
1141540304
1222ba2613
13139063c5
14a9b970b
15711bd06
hex4cd9eef

80584431 has 4 divisors (see below), whose sum is σ = 107445912. Its totient is φ = 53722952.

The previous prime is 80584423. The next prime is 80584459. The reversal of 80584431 is 13448508.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80584431 - 23 = 80584423 is a prime.

It is a super-2 number, since 2×805844312 = 12987701039187522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80584392 and 80584401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80584411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13430736 + ... + 13430741.

It is an arithmetic number, because the mean of its divisors is an integer number (26861478).

Almost surely, 280584431 is an apocalyptic number.

80584431 is a deficient number, since it is larger than the sum of its proper divisors (26861481).

80584431 is a wasteful number, since it uses less digits than its factorization.

80584431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26861480.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 80584431 is about 8976.8831450565. The cubic root of 80584431 is about 431.9336585797.

The spelling of 80584431 in words is "eighty million, five hundred eighty-four thousand, four hundred thirty-one".

Divisors: 1 3 26861477 80584431