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60208069 = 149404081
BaseRepresentation
bin1110010110101…
…1001111000101
311012021212221111
43211223033011
5110403124234
65550245021
71330521505
oct345531705
9135255844
1060208069
1130a93239
12181b6771
13c62089c
147dd3a05
155444664
hex396b3c5

60208069 has 4 divisors (see below), whose sum is σ = 60612300. Its totient is φ = 59803840.

The previous prime is 60208063. The next prime is 60208073. The reversal of 60208069 is 96080206.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96080206 = 248040103.

It can be written as a sum of positive squares in 2 ways, for example, as 29571844 + 30636225 = 5438^2 + 5535^2 .

It is a cyclic number.

It is not a de Polignac number, because 60208069 - 23 = 60208061 is a prime.

It is a super-2 number, since 2×602080692 = 7250023145417522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60208069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60208061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201892 + ... + 202189.

It is an arithmetic number, because the mean of its divisors is an integer number (15153075).

Almost surely, 260208069 is an apocalyptic number.

It is an amenable number.

60208069 is a deficient number, since it is larger than the sum of its proper divisors (404231).

60208069 is a wasteful number, since it uses less digits than its factorization.

60208069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404230.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 60208069 is about 7759.3858648736. The cubic root of 60208069 is about 391.9387767949.

The spelling of 60208069 in words is "sixty million, two hundred eight thousand, sixty-nine".

Divisors: 1 149 404081 60208069