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131211314 = 2135046589
BaseRepresentation
bin1111101001000…
…10000000110010
3100010220020002022
413310202000302
5232042230224
621004151442
73152164163
oct764420062
9303806068
10131211314
116807a003
1237b38582
1321250c40
14135d776a
15b7bc65e
hex7d22032

131211314 has 8 divisors (see below), whose sum is σ = 211956780. Its totient is φ = 60559056.

The previous prime is 131211307. The next prime is 131211317. The reversal of 131211314 is 413112131.

It can be written as a sum of positive squares in 2 ways, for example, as 116273089 + 14938225 = 10783^2 + 3865^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 131211292 and 131211301.

It is not an unprimeable number, because it can be changed into a prime (131211317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2523269 + ... + 2523320.

Almost surely, 2131211314 is an apocalyptic number.

131211314 is a deficient number, since it is larger than the sum of its proper divisors (80745466).

131211314 is a wasteful number, since it uses less digits than its factorization.

131211314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5046604.

The product of its digits is 72, while the sum is 17.

The square root of 131211314 is about 11454.7507174971. The cubic root of 131211314 is about 508.1482429492.

Adding to 131211314 its reverse (413112131), we get a palindrome (544323445).

The spelling of 131211314 in words is "one hundred thirty-one million, two hundred eleven thousand, three hundred fourteen".

Divisors: 1 2 13 26 5046589 10093178 65605657 131211314