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11448011237 = 132321664681
BaseRepresentation
bin10101010100101101…
…01100100111100101
31002112211110020010012
422222112230213211
5141421142324422
65131550340005
7553456330025
oct125226544745
932484406105
1011448011237
114945116313
122275aba605
1311059a9060
147a85b1a85
154700884e2
hex2aa5ac9e5

11448011237 has 12 divisors (see below), whose sum is σ = 12887968044. Its totient is φ = 10107936960.

The previous prime is 11448011231. The next prime is 11448011243. The reversal of 11448011237 is 73211084411.

It is an interprime number because it is at equal distance from previous prime (11448011231) and next prime (11448011243).

It can be written as a sum of positive squares in 2 ways, for example, as 6943722241 + 4504288996 = 83329^2 + 67114^2 .

It is not a de Polignac number, because 11448011237 - 210 = 11448010213 is a prime.

It is a super-2 number, since 2×114480112372 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11448011231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 825464 + ... + 839217.

It is an arithmetic number, because the mean of its divisors is an integer number (1073997337).

Almost surely, 211448011237 is an apocalyptic number.

It is an amenable number.

11448011237 is a deficient number, since it is larger than the sum of its proper divisors (1439956807).

11448011237 is a wasteful number, since it uses less digits than its factorization.

11448011237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664740 (or 1664717 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

Adding to 11448011237 its reverse (73211084411), we get a palindrome (84659095648).

The spelling of 11448011237 in words is "eleven billion, four hundred forty-eight million, eleven thousand, two hundred thirty-seven".

Divisors: 1 13 23 299 529 6877 1664681 21640853 38287663 497739619 880616249 11448011237