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7136703481 = 18139429301
BaseRepresentation
bin1101010010110000…
…10111001111111001
3200102100222002201011
412221120113033321
5104103444002411
63140100153521
7341565656455
oct65130271771
920370862634
107136703481
113032534a56
1214720988a1
1389972a98b
144b9b83665
152bb81dc21
hex1a96173f9

7136703481 has 4 divisors (see below), whose sum is σ = 7176132964. Its totient is φ = 7097274000.

The previous prime is 7136703473. The next prime is 7136703503. The reversal of 7136703481 is 1843076317.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1843076317 = 5801317717.

It can be written as a sum of positive squares in 2 ways, for example, as 2645559225 + 4491144256 = 51435^2 + 67016^2 .

It is a cyclic number.

It is not a de Polignac number, because 7136703481 - 23 = 7136703473 is a prime.

It is a super-2 number, since 2×71367034812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7136703461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19714470 + ... + 19714831.

It is an arithmetic number, because the mean of its divisors is an integer number (1794033241).

Almost surely, 27136703481 is an apocalyptic number.

It is an amenable number.

7136703481 is a deficient number, since it is larger than the sum of its proper divisors (39429483).

7136703481 is a wasteful number, since it uses less digits than its factorization.

7136703481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39429482.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 7136703481 is about 84479.0120740057. The cubic root of 7136703481 is about 1925.3035766576.

Adding to 7136703481 its reverse (1843076317), we get a palindrome (8979779798).

The spelling of 7136703481 in words is "seven billion, one hundred thirty-six million, seven hundred three thousand, four hundred eighty-one".

Divisors: 1 181 39429301 7136703481