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208010153 = 1316000781
BaseRepresentation
bin11000110010111…
…11101110101001
3112111102000021202
430121133232221
5411222311103
632350213545
75104025411
oct1431375651
9474360252
10208010153
11a746411a
12597b42b5
1334130240
141d8a9641
15133dc988
hexc65fba9

208010153 has 4 divisors (see below), whose sum is σ = 224010948. Its totient is φ = 192009360.

The previous prime is 208010149. The next prime is 208010197. The reversal of 208010153 is 351010802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80048809 + 127961344 = 8947^2 + 11312^2 .

It is a cyclic number.

It is not a de Polignac number, because 208010153 - 22 = 208010149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (208015153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8000378 + ... + 8000403.

It is an arithmetic number, because the mean of its divisors is an integer number (56002737).

Almost surely, 2208010153 is an apocalyptic number.

It is an amenable number.

208010153 is a deficient number, since it is larger than the sum of its proper divisors (16000795).

208010153 is a wasteful number, since it uses less digits than its factorization.

208010153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16000794.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 208010153 is about 14422.5570895039. The cubic root of 208010153 is about 592.5088539806.

Adding to 208010153 its reverse (351010802), we get a palindrome (559020955).

The spelling of 208010153 in words is "two hundred eight million, ten thousand, one hundred fifty-three".

Divisors: 1 13 16000781 208010153