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683448025 = 521317123701
BaseRepresentation
bin101000101111001…
…001011011011001
31202122000202102211
4220233021123121
52344430314100
6151452355121
722636132561
oct5057113331
91678022384
10683448025
11320874687
12170a75aa1
13ab795520
1466aa9da1
15400031ba
hex28bc96d9

683448025 has 24 divisors (see below), whose sum is σ = 966360024. Its totient is φ = 475008000.

The previous prime is 683448023. The next prime is 683448037. The reversal of 683448025 is 520844386.

It can be written as a sum of positive squares in 12 ways, for example, as 345476569 + 337971456 = 18587^2 + 18384^2 .

It is not a de Polignac number, because 683448025 - 21 = 683448023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683448023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56326 + ... + 67375.

It is an arithmetic number, because the mean of its divisors is an integer number (40265001).

Almost surely, 2683448025 is an apocalyptic number.

683448025 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

683448025 is a deficient number, since it is larger than the sum of its proper divisors (282911999).

683448025 is a wasteful number, since it uses less digits than its factorization.

683448025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123741 (or 123736 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The square root of 683448025 is about 26142.8388856298. The cubic root of 683448025 is about 880.8497409388.

The spelling of 683448025 in words is "six hundred eighty-three million, four hundred forty-eight thousand, twenty-five".

Divisors: 1 5 13 17 25 65 85 221 325 425 1105 5525 123701 618505 1608113 2102917 3092525 8040565 10514585 27337921 40202825 52572925 136689605 683448025