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67425930 = 23251113331
BaseRepresentation
bin1000000010011…
…01011010001010
311200212120222200
410001031122022
5114230112210
610405101030
71446053025
oct401153212
9150776880
1067425930
1135073110
121a6b7776
1310c7a000
148d521bc
155dbd0c0
hex404d68a

67425930 has 192 divisors, whose sum is σ = 213857280. Its totient is φ = 14601600.

The previous prime is 67425913. The next prime is 67425937. The reversal of 67425930 is 3952476.

67425930 is a `hidden beast` number, since 67 + 4 + 2 + 593 + 0 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67425937) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2175015 + ... + 2175045.

It is an arithmetic number, because the mean of its divisors is an integer number (1113840).

Almost surely, 267425930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67425930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106928640).

67425930 is an abundant number, since it is smaller than the sum of its proper divisors (146431350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67425930 is a wasteful number, since it uses less digits than its factorization.

67425930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 67425930 is about 8211.3293686224. The cubic root of 67425930 is about 407.0136569338.

The spelling of 67425930 in words is "sixty-seven million, four hundred twenty-five thousand, nine hundred thirty".