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80568473 = 312598983
BaseRepresentation
bin1001100110101…
…10000010011001
312121121022011112
410303112002121
5131111142343
611554510105
71665551336
oct463260231
9177538145
1080568473
114152a317
1222b95335
13138cc06b
14a9b398d
157117218
hex4cd6099

80568473 has 4 divisors (see below), whose sum is σ = 83167488. Its totient is φ = 77969460.

The previous prime is 80568463. The next prime is 80568511. The reversal of 80568473 is 37486508.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80568473 - 210 = 80567449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80568473.

It is not an unprimeable number, because it can be changed into a prime (80568443) 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, 1299461 + ... + 1299522.

It is an arithmetic number, because the mean of its divisors is an integer number (20791872).

Almost surely, 280568473 is an apocalyptic number.

It is an amenable number.

80568473 is a deficient number, since it is larger than the sum of its proper divisors (2599015).

80568473 is a wasteful number, since it uses less digits than its factorization.

80568473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599014.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 80568473 is about 8975.9942624759. The cubic root of 80568473 is about 431.9051449977.

The spelling of 80568473 in words is "eighty million, five hundred sixty-eight thousand, four hundred seventy-three".

Divisors: 1 31 2598983 80568473