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311421200141 = 372241794117
BaseRepresentation
bin1001000100000100010…
…01100110011100001101
31002202211110221002221202
410202002021212130031
520100242311401031
6355022005035245
731333210345052
oct4420211463415
91082743832852
10311421200141
1111008916aa87
12504323b5b25
13234a00ab2bc
1411103d35029
15817a1ed2cb
hex488226670d

311421200141 has 12 divisors (see below), whose sum is σ = 320201294868. Its totient is φ = 302875828992.

The previous prime is 311421200093. The next prime is 311421200203. The reversal of 311421200141 is 141002124113.

It can be written as a sum of positive squares in 6 ways, for example, as 156779570116 + 154641630025 = 395954^2 + 393245^2 .

It is not a de Polignac number, because 311421200141 - 238 = 36543293197 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 (311421200341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3261815 + ... + 3355931.

It is an arithmetic number, because the mean of its divisors is an integer number (26683441239).

Almost surely, 2311421200141 is an apocalyptic number.

It is an amenable number.

311421200141 is a deficient number, since it is larger than the sum of its proper divisors (8780094727).

311421200141 is an equidigital number, since it uses as much as digits as its factorization.

311421200141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96608 (or 96571 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 311421200141 its reverse (141002124113), we get a palindrome (452423324254).

The spelling of 311421200141 in words is "three hundred eleven billion, four hundred twenty-one million, two hundred thousand, one hundred forty-one".

Divisors: 1 37 1369 2417 89429 94117 3308873 3482329 128846173 227480789 8416789193 311421200141