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80409223 = 271296713
BaseRepresentation
bin1001100101011…
…11001010000111
312121022012201101
410302233022013
5131041043343
611551240531
71664316136
oct462571207
9177265641
1080409223
1141430704
1222b19147
131387472b
14a97191d
1570d4e4d
hex4caf287

80409223 has 4 divisors (see below), whose sum is σ = 80706208. Its totient is φ = 80112240.

The previous prime is 80409221. The next prime is 80409227. The reversal of 80409223 is 32290408.

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 80409223 - 21 = 80409221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80409191 and 80409200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80409221) 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, 148086 + ... + 148627.

It is an arithmetic number, because the mean of its divisors is an integer number (20176552).

Almost surely, 280409223 is an apocalyptic number.

80409223 is a deficient number, since it is larger than the sum of its proper divisors (296985).

80409223 is a wasteful number, since it uses less digits than its factorization.

80409223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296984.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 80409223 is about 8967.1189910695. The cubic root of 80409223 is about 431.6203923371.

The spelling of 80409223 in words is "eighty million, four hundred nine thousand, two hundred twenty-three".

Divisors: 1 271 296713 80409223