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80485439 = 193417023
BaseRepresentation
bin1001100110000…
…01110000111111
312121110002021012
410303001300333
5131101013224
611553025435
71665054266
oct463016077
9177402235
1080485439
11414829a1
1222b5527b
13138a0328
14a9915dd
1570ec80e
hex4cc1c3f

80485439 has 4 divisors (see below), whose sum is σ = 80902656. Its totient is φ = 80068224.

The previous prime is 80485417. The next prime is 80485477. The reversal of 80485439 is 93458408.

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 80485439 - 216 = 80419903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80485396 and 80485405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80485039) 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, 208319 + ... + 208704.

It is an arithmetic number, because the mean of its divisors is an integer number (20225664).

Almost surely, 280485439 is an apocalyptic number.

80485439 is a deficient number, since it is larger than the sum of its proper divisors (417217).

80485439 is a wasteful number, since it uses less digits than its factorization.

80485439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417216.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 80485439 is about 8971.3677329602. The cubic root of 80485439 is about 431.7567199474.

The spelling of 80485439 in words is "eighty million, four hundred eighty-five thousand, four hundred thirty-nine".

Divisors: 1 193 417023 80485439