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80455061 = 354122721
BaseRepresentation
bin1001100101110…
…10010110010101
312121101112121002
410302322112111
5131044030221
611552233045
71664566601
oct462722625
9177345532
1080455061
1141462095
1222b3b785
131388c55b
14a984501
1570e380b
hex4cba595

80455061 has 4 divisors (see below), whose sum is σ = 80481324. Its totient is φ = 80428800.

The previous prime is 80455049. The next prime is 80455129. The reversal of 80455061 is 16055408.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32706961 + 47748100 = 5719^2 + 6910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-80455061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80455561) 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, 7820 + ... + 14901.

It is an arithmetic number, because the mean of its divisors is an integer number (20120331).

Almost surely, 280455061 is an apocalyptic number.

It is an amenable number.

80455061 is a deficient number, since it is larger than the sum of its proper divisors (26263).

80455061 is a wasteful number, since it uses less digits than its factorization.

80455061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26262.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 80455061 is about 8969.6745202934. The cubic root of 80455061 is about 431.7023931181.

The spelling of 80455061 in words is "eighty million, four hundred fifty-five thousand, sixty-one".

Divisors: 1 3541 22721 80455061