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208029901 = 1713998747
BaseRepresentation
bin11000110011001…
…00100011001101
3112111110000101011
430121210203031
5411223424101
632350445221
75104140112
oct1431444315
9474400334
10208029901
11a7477a42
1259803811
1334139221
141d8b2909
15133e3751
hexc6648cd

208029901 has 8 divisors (see below), whose sum is σ = 220449600. Its totient is φ = 195630528.

The previous prime is 208029893. The next prime is 208029919. The reversal of 208029901 is 109920802.

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 208029901 - 23 = 208029893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208029961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19410 + ... + 28156.

It is an arithmetic number, because the mean of its divisors is an integer number (27556200).

Almost surely, 2208029901 is an apocalyptic number.

It is an amenable number.

208029901 is a deficient number, since it is larger than the sum of its proper divisors (12419699).

208029901 is a wasteful number, since it uses less digits than its factorization.

208029901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10163.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 208029901 is about 14423.2416952639. The cubic root of 208029901 is about 592.5276038579.

It can be divided in two parts, 20802 and 9901, that added together give a palindrome (30703).

The spelling of 208029901 in words is "two hundred eight million, twenty-nine thousand, nine hundred one".

Divisors: 1 17 1399 8747 23783 148699 12237053 208029901