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80409319 = 3110325183
BaseRepresentation
bin1001100101011…
…11001011100111
312121022012211221
410302233023213
5131041044234
611551241211
71664316334
oct462571347
9177265757
1080409319
1141430791
1222b19207
13138747a3
14a97198b
1570d4eb4
hex4caf2e7

80409319 has 8 divisors (see below), whose sum is σ = 83812352. Its totient is φ = 77056920.

The previous prime is 80409317. The next prime is 80409341. The reversal of 80409319 is 91390408.

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 80409319 - 21 = 80409317 is a prime.

It is a super-3 number, since 3×804093193 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80409317) 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, 9399 + ... + 15784.

It is an arithmetic number, because the mean of its divisors is an integer number (10476544).

Almost surely, 280409319 is an apocalyptic number.

80409319 is a deficient number, since it is larger than the sum of its proper divisors (3403033).

80409319 is a wasteful number, since it uses less digits than its factorization.

80409319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25317.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 80409319 is about 8967.1243439578. The cubic root of 80409319 is about 431.6205641065.

The spelling of 80409319 in words is "eighty million, four hundred nine thousand, three hundred nineteen".

Divisors: 1 31 103 3193 25183 780673 2593849 80409319