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5215312244 = 221303828061
BaseRepresentation
bin1001101101101101…
…10101100101110100
3111110110112022102202
410312312311211310
541140104442434
62221302124032
7243145264652
oct46666654564
914413468382
105215312244
1122369a930a
121016720618
1365164769c
1437690bdd2
15207cd7a7e
hex136db5974

5215312244 has 6 divisors (see below), whose sum is σ = 9126796434. Its totient is φ = 2607656120.

The previous prime is 5215312189. The next prime is 5215312247. The reversal of 5215312244 is 4422135125.

It can be written as a sum of positive squares in only one way, i.e., 2798410000 + 2416902244 = 52900^2 + 49162^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5215312247) 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 as a sum of consecutive naturals, namely, 651914027 + ... + 651914034.

It is an arithmetic number, because the mean of its divisors is an integer number (1521132739).

Almost surely, 25215312244 is an apocalyptic number.

It is an amenable number.

5215312244 is a deficient number, since it is larger than the sum of its proper divisors (3911484190).

5215312244 is a wasteful number, since it uses less digits than its factorization.

5215312244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303828065 (or 1303828063 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 5215312244 is about 72217.1187738752. The cubic root of 5215312244 is about 1734.1770653489.

Adding to 5215312244 its reverse (4422135125), we get a palindrome (9637447369).

The spelling of 5215312244 in words is "five billion, two hundred fifteen million, three hundred twelve thousand, two hundred forty-four".

Divisors: 1 2 4 1303828061 2607656122 5215312244