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204020141 = 1341382777
BaseRepresentation
bin11000010100100…
…01100110101101
3112012220022000112
430022101212231
5404212121031
632124505405
75025066623
oct1412214655
9465808015
10204020141
11a5189396
12583ab265
13333640a0
141d14b513
1512da062b
hexc2919ad

204020141 has 8 divisors (see below), whose sum is σ = 225073464. Its totient is φ = 183732480.

The previous prime is 204019979. The next prime is 204020153. The reversal of 204020141 is 141020402.

It can be written as a sum of positive squares in 4 ways, for example, as 9278116 + 194742025 = 3046^2 + 13955^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204020141 - 210 = 204019117 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 (204022141) 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, 190856 + ... + 191921.

It is an arithmetic number, because the mean of its divisors is an integer number (28134183).

Almost surely, 2204020141 is an apocalyptic number.

It is an amenable number.

204020141 is a deficient number, since it is larger than the sum of its proper divisors (21053323).

204020141 is a wasteful number, since it uses less digits than its factorization.

204020141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382831.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 204020141 is about 14283.5619157128. The cubic root of 204020141 is about 588.6959044724.

Adding to 204020141 its reverse (141020402), we get a palindrome (345040543).

The spelling of 204020141 in words is "two hundred four million, twenty thousand, one hundred forty-one".

Divisors: 1 13 41 533 382777 4976101 15693857 204020141