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1311530714 = 213411230329
BaseRepresentation
bin100111000101100…
…0101111011011010
310101101212122220122
41032023011323122
510141222440324
6334050353242
744333553464
oct11613057332
93341778818
101311530714
1161336348a
1230728b822
1317b9444a0
14c6283134
157a21ba5e
hex4e2c5eda

1311530714 has 16 divisors (see below), whose sum is σ = 2170302120. Its totient is φ = 590557440.

The previous prime is 1311530711. The next prime is 1311530719. The reversal of 1311530714 is 4170351131.

It can be written as a sum of positive squares in 4 ways, for example, as 192293689 + 1119237025 = 13867^2 + 33455^2 .

It is a super-2 number, since 2×13115307142 = 3440225627530699592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1311530711) 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, 614099 + ... + 616230.

Almost surely, 21311530714 is an apocalyptic number.

1311530714 is a deficient number, since it is larger than the sum of its proper divisors (858771406).

1311530714 is a wasteful number, since it uses less digits than its factorization.

1311530714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230385.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1311530714 is about 36215.0619770283. The cubic root of 1311530714 is about 1094.6101943687.

Adding to 1311530714 its reverse (4170351131), we get a palindrome (5481881845).

The spelling of 1311530714 in words is "one billion, three hundred eleven million, five hundred thirty thousand, seven hundred fourteen".

Divisors: 1 2 13 26 41 82 533 1066 1230329 2460658 15994277 31988554 50443489 100886978 655765357 1311530714