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205103223355 = 561547666493
BaseRepresentation
bin1011111100000100011…
…0101101001000111011
3201121101222220021212211
42333001012231020323
511330022411121410
6234120105515551
720550435430132
oct2770106551073
9647358807784
10205103223355
1179a90471468
12339007a2bb7
131645867c774
149cd9b72919
1555064ba68a
hex2fc11ad23b

205103223355 has 8 divisors (see below), whose sum is σ = 246128236272. Its totient is φ = 164079666528.

The previous prime is 205103223337. The next prime is 205103223421. The reversal of 205103223355 is 553322301502.

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 205103223355 - 25 = 205103223323 is a prime.

It is a super-2 number, since 2×2051032233552 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25512 + ... + 640981.

It is an arithmetic number, because the mean of its divisors is an integer number (30766029534).

Almost surely, 2205103223355 is an apocalyptic number.

205103223355 is a deficient number, since it is larger than the sum of its proper divisors (41025012917).

205103223355 is an equidigital number, since it uses as much as digits as its factorization.

205103223355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728045.

The product of its (nonzero) digits is 27000, while the sum is 31.

Adding to 205103223355 its reverse (553322301502), we get a palindrome (758425524857).

The spelling of 205103223355 in words is "two hundred five billion, one hundred three million, two hundred twenty-three thousand, three hundred fifty-five".

Divisors: 1 5 61547 307735 666493 3332465 41020644671 205103223355