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487669238 = 27191833343
BaseRepresentation
bin11101000100010…
…011110111110110
31020222122011102122
4131010103313312
51444320403423
6120220235542
715041056130
oct3504236766
91228564378
10487669238
11230305131
1211739bbb2
137a0586a4
1448aa6050
152cc2e8c8
hex1d113df6

487669238 has 16 divisors (see below), whose sum is σ = 880005120. Its totient is φ = 198000936.

The previous prime is 487669229. The next prime is 487669243. The reversal of 487669238 is 832966784.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 487669238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916406 + ... + 916937.

It is an arithmetic number, because the mean of its divisors is an integer number (55000320).

Almost surely, 2487669238 is an apocalyptic number.

487669238 is a deficient number, since it is larger than the sum of its proper divisors (392335882).

487669238 is a wasteful number, since it uses less digits than its factorization.

487669238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833371.

The product of its digits is 3483648, while the sum is 53.

The square root of 487669238 is about 22083.2343192749. The cubic root of 487669238 is about 787.1215215981.

The spelling of 487669238 in words is "four hundred eighty-seven million, six hundred sixty-nine thousand, two hundred thirty-eight".

Divisors: 1 2 7 14 19 38 133 266 1833343 3666686 12833401 25666802 34833517 69667034 243834619 487669238