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80483891 = 103781397
BaseRepresentation
bin1001100110000…
…01011000110011
312121110000010212
410303001120303
5131100441031
611553014335
71665046625
oct463013063
9177400125
1080483891
1141481814
1222b543ab
131389c707
14a990c15
1570ec12b
hex4cc1633

80483891 has 4 divisors (see below), whose sum is σ = 81265392. Its totient is φ = 79702392.

The previous prime is 80483869. The next prime is 80483927. The reversal of 80483891 is 19838408.

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 80483891 - 210 = 80482867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80489891) 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, 390596 + ... + 390801.

It is an arithmetic number, because the mean of its divisors is an integer number (20316348).

Almost surely, 280483891 is an apocalyptic number.

80483891 is a deficient number, since it is larger than the sum of its proper divisors (781501).

80483891 is a wasteful number, since it uses less digits than its factorization.

80483891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781500.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 80483891 is about 8971.2814580750. The cubic root of 80483891 is about 431.7539518952.

The spelling of 80483891 in words is "eighty million, four hundred eighty-three thousand, eight hundred ninety-one".

Divisors: 1 103 781397 80483891