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67314805 = 518174381
BaseRepresentation
bin1000000001100…
…10010001110101
311200122221112221
410000302101311
5114213033210
610402442341
71445111035
oct400622165
9150587487
1067314805
1134aa7678
121a6633b1
1310c3b55c
148d238c5
155d9a1da
hex4032475

67314805 has 8 divisors (see below), whose sum is σ = 81225144. Its totient is φ = 53553600.

The previous prime is 67314769. The next prime is 67314817. The reversal of 67314805 is 50841376.

67314805 = 58012 + 58022.

It can be written as a sum of positive squares in 4 ways, for example, as 91204 + 67223601 = 302^2 + 8199^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67314805 - 215 = 67282037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36286 + ... + 38095.

It is an arithmetic number, because the mean of its divisors is an integer number (10153143).

Almost surely, 267314805 is an apocalyptic number.

67314805 is the 5802-nd centered square number.

It is an amenable number.

67314805 is a deficient number, since it is larger than the sum of its proper divisors (13910339).

67314805 is a wasteful number, since it uses less digits than its factorization.

67314805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74567.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 67314805 is about 8204.5600125784. The cubic root of 67314805 is about 406.7899335927.

The spelling of 67314805 in words is "sixty-seven million, three hundred fourteen thousand, eight hundred five".

Divisors: 1 5 181 905 74381 371905 13462961 67314805