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204102210353 = 539781393721
BaseRepresentation
bin1011111000010101110…
…0001001001100110001
3201111211020022120012012
42332011130021030301
511321000131212403
6233432510412305
720513562106646
oct2760534111461
9644736276165
10204102210353
1179617416598
1233681501095
1316329179492
149c42c3ddcd
155498688ed8
hex2f85709331

204102210353 has 8 divisors (see below), whose sum is σ = 207974984616. Its totient is φ = 200230243200.

The previous prime is 204102210283. The next prime is 204102210359. The reversal of 204102210353 is 353012201402.

It can be written as a sum of positive squares in 4 ways, for example, as 32633338609 + 171468871744 = 180647^2 + 414088^2 .

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 204102210353 - 28 = 204102210097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204102210359) 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, 321533 + ... + 715253.

It is an arithmetic number, because the mean of its divisors is an integer number (25996873077).

Almost surely, 2204102210353 is an apocalyptic number.

It is an amenable number.

204102210353 is a deficient number, since it is larger than the sum of its proper divisors (3872774263).

204102210353 is an equidigital number, since it uses as much as digits as its factorization.

204102210353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403555.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 204102210353 its reverse (353012201402), we get a palindrome (557114411755).

The spelling of 204102210353 in words is "two hundred four billion, one hundred two million, two hundred ten thousand, three hundred fifty-three".

Divisors: 1 53 9781 393721 518393 20867213 3850985101 204102210353