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67430613 = 337613991
BaseRepresentation
bin1000000010011…
…10100011010101
311200212211102010
410001032203111
5114230234423
610405134433
71446102465
oct401164325
9150784363
1067430613
1135076688
121a6ba419
1310c7c193
148d53ba5
155dbe693
hex404e8d5

67430613 has 16 divisors (see below), whose sum is σ = 92581376. Its totient is φ = 43623360.

The previous prime is 67430599. The next prime is 67430659. The reversal of 67430613 is 31603476.

It is not a de Polignac number, because 67430613 - 25 = 67430581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67430683) 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 15 ways as a sum of consecutive naturals, for example, 67548 + ... + 68538.

It is an arithmetic number, because the mean of its divisors is an integer number (5786336).

Almost surely, 267430613 is an apocalyptic number.

It is an amenable number.

67430613 is a deficient number, since it is larger than the sum of its proper divisors (25150763).

67430613 is a wasteful number, since it uses less digits than its factorization.

67430613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 67430613 is about 8211.6145184732. The cubic root of 67430613 is about 407.0230796234.

The spelling of 67430613 in words is "sixty-seven million, four hundred thirty thousand, six hundred thirteen".

Divisors: 1 3 37 111 613 991 1839 2973 22681 36667 68043 110001 607483 1822449 22476871 67430613