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1312142234 = 213102149429
BaseRepresentation
bin100111000110101…
…1011001110011010
310101110000201202112
41032031123032122
510141402022414
6334111432322
744342011364
oct11615331632
93343021675
101312142234
11613740977
123075256a2
1317bac9930
14c63a1d34
157a2dcd3e
hex4e35b39a

1312142234 has 16 divisors (see below), whose sum is σ = 2121733320. Its totient is φ = 604998720.

The previous prime is 1312142233. The next prime is 1312142281. The reversal of 1312142234 is 4322412131.

It can be written as a sum of positive squares in 4 ways, for example, as 1023040225 + 289102009 = 31985^2 + 17003^2 .

It is not an unprimeable number, because it can be changed into a prime (1312142233) 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, 1832 + ... + 51260.

Almost surely, 21312142234 is an apocalyptic number.

1312142234 is a deficient number, since it is larger than the sum of its proper divisors (809591086).

1312142234 is a wasteful number, since it uses less digits than its factorization.

1312142234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50465.

The product of its digits is 1152, while the sum is 23.

The square root of 1312142234 is about 36223.5038890497. The cubic root of 1312142234 is about 1094.7802938335.

Adding to 1312142234 its reverse (4322412131), we get a palindrome (5634554365).

It can be divided in two parts, 13121 and 42234, that added together give a palindrome (55355).

The spelling of 1312142234 in words is "one billion, three hundred twelve million, one hundred forty-two thousand, two hundred thirty-four".

Divisors: 1 2 13 26 1021 2042 13273 26546 49429 98858 642577 1285154 50467009 100934018 656071117 1312142234