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80408041 = 711486863
BaseRepresentation
bin1001100101011…
…10110111101001
312121022011002121
410302232313221
5131041024131
611551231241
71664312530
oct462566751
9177264077
1080408041
114142a82a
1222b18521
131387402c
14a971317
1570d4911
hex4caede9

80408041 has 4 divisors (see below), whose sum is σ = 91894912. Its totient is φ = 68921172.

The previous prime is 80408033. The next prime is 80408051. The reversal of 80408041 is 14080408.

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 80408041 - 23 = 80408033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80407997 and 80408015.

It is not an unprimeable number, because it can be changed into a prime (80408051) 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, 5743425 + ... + 5743438.

It is an arithmetic number, because the mean of its divisors is an integer number (22973728).

Almost surely, 280408041 is an apocalyptic number.

It is an amenable number.

80408041 is a deficient number, since it is larger than the sum of its proper divisors (11486871).

80408041 is a wasteful number, since it uses less digits than its factorization.

80408041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11486870.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 80408041 is about 8967.0530833714. The cubic root of 80408041 is about 431.6182774147.

Adding to 80408041 its reverse (14080408), we get a palindrome (94488449).

The spelling of 80408041 in words is "eighty million, four hundred eight thousand, forty-one".

Divisors: 1 7 11486863 80408041