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1312154341 = 7333373
BaseRepresentation
bin100111000110101…
…1110001011100101
310101110001100100221
41032031132023211
510141402414331
6334112004341
744342061601
oct11615361345
93343040327
101312154341
11613749a83
123075306b1
1317bb022b4
14c63a6501
157a2e1711
hex4e35e2e5

1312154341 has 8 divisors (see below), whose sum is σ = 1330773080. Its totient is φ = 1293795936.

The previous prime is 1312154339. The next prime is 1312154369. The reversal of 1312154341 is 1434512131.

It can be written as a sum of positive squares in 4 ways, for example, as 240901441 + 1071252900 = 15521^2 + 32730^2 .

It is not a de Polignac number, because 1312154341 - 21 = 1312154339 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 (1312154381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387331 + ... + 390703.

It is an arithmetic number, because the mean of its divisors is an integer number (166346635).

Almost surely, 21312154341 is an apocalyptic number.

It is an amenable number.

1312154341 is a deficient number, since it is larger than the sum of its proper divisors (18618739).

1312154341 is an frugal number, since it uses more digits than its factorization.

1312154341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3592 (or 3446 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 1312154341 is about 36223.6710039168. The cubic root of 1312154341 is about 1094.7836609644.

Adding to 1312154341 its reverse (1434512131), we get a palindrome (2746666472).

The spelling of 1312154341 in words is "one billion, three hundred twelve million, one hundred fifty-four thousand, three hundred forty-one".

Divisors: 1 73 3373 5329 246229 389017 17974717 1312154341