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67420153 = 238335317
BaseRepresentation
bin1000000010010…
…11111111111001
311200212022001201
410001023333321
5114224421103
610405014201
71446030133
oct401137771
9150768051
1067420153
1135069839
121a6b4361
1310c774a8
148d50053
155dbb51d
hex404bff9

67420153 has 8 divisors (see below), whose sum is σ = 71201088. Its totient is φ = 63710064.

The previous prime is 67420139. The next prime is 67420159. The reversal of 67420153 is 35102476.

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 67420153 - 29 = 67419641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67420159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15750 + ... + 19567.

It is an arithmetic number, because the mean of its divisors is an integer number (8900136).

Almost surely, 267420153 is an apocalyptic number.

It is an amenable number.

67420153 is a deficient number, since it is larger than the sum of its proper divisors (3780935).

67420153 is a wasteful number, since it uses less digits than its factorization.

67420153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35423.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 67420153 is about 8210.9775910058. The cubic root of 67420153 is about 407.0020323997.

The spelling of 67420153 in words is "sixty-seven million, four hundred twenty thousand, one hundred fifty-three".

Divisors: 1 23 83 1909 35317 812291 2931311 67420153