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205413413351 = 8271867133039
BaseRepresentation
bin1011111101001110010…
…1111111000111100111
3201122012121120120120012
42333103211333013213
511331141313211401
6234210550200435
720561223130136
oct2772345770747
9648177516505
10205413413351
117a12a575833
123398865311b
13164a7a07743
149d2903991d
15552383d8bb
hex2fd397f1e7

205413413351 has 8 divisors (see below), whose sum is σ = 205773500160. Its totient is φ = 205053598008.

The previous prime is 205413413329. The next prime is 205413413363. The reversal of 205413413351 is 153314314502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-205413413351 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 (205413413311) 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, 1477490 + ... + 1610528.

It is an arithmetic number, because the mean of its divisors is an integer number (25721687520).

Almost surely, 2205413413351 is an apocalyptic number.

205413413351 is a deficient number, since it is larger than the sum of its proper divisors (360086809).

205413413351 is a wasteful number, since it uses less digits than its factorization.

205413413351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135733.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 205413413351 its reverse (153314314502), we get a palindrome (358727727853).

The spelling of 205413413351 in words is "two hundred five billion, four hundred thirteen million, four hundred thirteen thousand, three hundred fifty-one".

Divisors: 1 827 1867 133039 1544009 110023253 248383813 205413413351