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67423725 = 3352591693
BaseRepresentation
bin1000000010011…
…00110111101101
311200212110222000
410001030313231
5114230024400
610405042513
71446043425
oct401146755
9150773860
1067423725
1135071496
121a6b6439
1310c78cc5
148d51485
155dbc600
hex404cded

67423725 has 48 divisors (see below), whose sum is σ = 126033600. Its totient is φ = 35328960.

The previous prime is 67423691. The next prime is 67423781. The reversal of 67423725 is 52732476.

It is a happy number.

It is not a de Polignac number, because 67423725 - 212 = 67419629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67423725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38979 + ... + 40671.

It is an arithmetic number, because the mean of its divisors is an integer number (2625700).

Almost surely, 267423725 is an apocalyptic number.

It is an amenable number.

67423725 is a deficient number, since it is larger than the sum of its proper divisors (58609875).

67423725 is a wasteful number, since it uses less digits than its factorization.

67423725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771 (or 1760 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 67423725 is about 8211.1951018107. The cubic root of 67423725 is about 407.0092200903.

The spelling of 67423725 in words is "sixty-seven million, four hundred twenty-three thousand, seven hundred twenty-five".

Divisors: 1 3 5 9 15 25 27 45 59 75 135 177 225 295 531 675 885 1475 1593 1693 2655 4425 5079 7965 8465 13275 15237 25395 39825 42325 45711 76185 99887 126975 228555 299661 380925 499435 898983 1142775 1498305 2497175 2696949 4494915 7491525 13484745 22474575 67423725