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1283369044 = 22417825421
BaseRepresentation
bin100110001111110…
…1010100001010100
310022102212220100211
41030133222201110
510112020302134
6331203015204
743542312466
oct11437524124
93272786324
101283369044
115a9479181
122b996a504
13175b64189
14c2632136
1577a07764
hex4c7ea854

1283369044 has 12 divisors (see below), whose sum is σ = 2300674068. Its totient is φ = 626033600.

The previous prime is 1283369033. The next prime is 1283369047. The reversal of 1283369044 is 4409633821.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 195160900 + 1088208144 = 13970^2 + 32988^2 .

It is a super-2 number, since 2×12833690442 = 3294072206194947872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1283368988 and 1283369006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283369047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3912547 + ... + 3912874.

It is an arithmetic number, because the mean of its divisors is an integer number (191722839).

Almost surely, 21283369044 is an apocalyptic number.

It is an amenable number.

1283369044 is a deficient number, since it is larger than the sum of its proper divisors (1017305024).

1283369044 is a wasteful number, since it uses less digits than its factorization.

1283369044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7825466 (or 7825464 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 1283369044 is about 35824.1405200460. The cubic root of 1283369044 is about 1086.7188154598.

The spelling of 1283369044 in words is "one billion, two hundred eighty-three million, three hundred sixty-nine thousand, forty-four".

Divisors: 1 2 4 41 82 164 7825421 15650842 31301684 320842261 641684522 1283369044