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138207483 = 32231494481
BaseRepresentation
bin10000011110011…
…10000011111011
3100122001200000200
420033032003323
5240340114413
621414133243
73265513161
oct1017160373
9318050020
10138207483
1171018367
123a351223
132283049b
14144d9231
15c200573
hex83ce0fb

138207483 has 24 divisors (see below), whose sum is σ = 209757600. Its totient is φ = 87521280.

The previous prime is 138207481. The next prime is 138207499. The reversal of 138207483 is 384702831.

It is not a de Polignac number, because 138207483 - 21 = 138207481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138207481) 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, 28603 + ... + 33083.

It is an arithmetic number, because the mean of its divisors is an integer number (8739900).

Almost surely, 2138207483 is an apocalyptic number.

138207483 is a deficient number, since it is larger than the sum of its proper divisors (71550117).

138207483 is a wasteful number, since it uses less digits than its factorization.

138207483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4659 (or 4656 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 138207483 is about 11756.1678705265. The cubic root of 138207483 is about 517.0237809049.

The spelling of 138207483 in words is "one hundred thirty-eight million, two hundred seven thousand, four hundred eighty-three".

Divisors: 1 3 9 23 69 149 207 447 1341 3427 4481 10281 13443 30843 40329 103063 309189 667669 927567 2003007 6009021 15356387 46069161 138207483