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205132231652053 = 725684928267397
BaseRepresentation
bin101110101001000100010001…
…110011001011001011010101
3222220022110010220221002201011
4232221010101303023023111
5203341341302300331203
62004140240221132221
761131212633502346
oct5651042163131325
9886273126832634
10205132231652053
115a3a80aaa88182
121b0100013ba071
138a5cb6a68c234
14389264add20cd
1518aae604e476d
hexba9111ccb2d5

205132231652053 has 4 divisors (see below), whose sum is σ = 205132267176300. Its totient is φ = 205132196127808.

The previous prime is 205132231652041. The next prime is 205132231652059. The reversal of 205132231652053 is 350256132231502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10353419534929 + 194778812117124 = 3217673^2 + 13956318^2 .

It is a cyclic number.

It is not a de Polignac number, because 205132231652053 - 29 = 205132231651541 is a prime.

It is a super-2 number, since 2×2051322316520532 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205132231651997 and 205132231652015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205132231652059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6876850 + ... + 21390547.

It is an arithmetic number, because the mean of its divisors is an integer number (51283066794075).

Almost surely, 2205132231652053 is an apocalyptic number.

It is an amenable number.

205132231652053 is a deficient number, since it is larger than the sum of its proper divisors (35524247).

205132231652053 is an equidigital number, since it uses as much as digits as its factorization.

205132231652053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35524246.

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 205132231652053 its reverse (350256132231502), we get a palindrome (555388363883555).

The spelling of 205132231652053 in words is "two hundred five trillion, one hundred thirty-two billion, two hundred thirty-one million, six hundred fifty-two thousand, fifty-three".

Divisors: 1 7256849 28267397 205132231652053