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67112445 = 354474163
BaseRepresentation
bin1000000000000…
…00110111111101
311200021122222010
410000000313331
5114140044240
610354241433
71443306051
oct400006775
9150248863
1067112445
1134979634
121a586279
1310b9a40a
148cadc61
155d5a280
hex4000dfd

67112445 has 8 divisors (see below), whose sum is σ = 107379936. Its totient is φ = 35793296.

The previous prime is 67112443. The next prime is 67112471. The reversal of 67112445 is 54421176.

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

It is a cyclic number.

It is not a de Polignac number, because 67112445 - 21 = 67112443 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67112443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2237067 + ... + 2237096.

It is an arithmetic number, because the mean of its divisors is an integer number (13422492).

Almost surely, 267112445 is an apocalyptic number.

It is an amenable number.

67112445 is a deficient number, since it is larger than the sum of its proper divisors (40267491).

67112445 is a wasteful number, since it uses less digits than its factorization.

67112445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4474171.

The product of its digits is 6720, while the sum is 30.

The square root of 67112445 is about 8192.2185639789. The cubic root of 67112445 is about 406.3818973694.

The spelling of 67112445 in words is "sixty-seven million, one hundred twelve thousand, four hundred forty-five".

Divisors: 1 3 5 15 4474163 13422489 22370815 67112445