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487939305 = 35726110883
BaseRepresentation
bin11101000101010…
…101110011101001
31021000010212220010
4131011111303221
51444403024210
6120230122133
715043262400
oct3505256351
91230125803
10487939305
1123047a027
121174b0349
137a1215a9
1448b36637
152cc84920
hex1d155ce9

487939305 has 48 divisors (see below), whose sum is σ = 923137344. Its totient is φ = 219381120.

The previous prime is 487939303. The next prime is 487939379. The reversal of 487939305 is 503939784.

It is not a de Polignac number, because 487939305 - 21 = 487939303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487939301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39394 + ... + 50276.

It is an arithmetic number, because the mean of its divisors is an integer number (19232028).

Almost surely, 2487939305 is an apocalyptic number.

It is an amenable number.

487939305 is a deficient number, since it is larger than the sum of its proper divisors (435198039).

487939305 is a wasteful number, since it uses less digits than its factorization.

487939305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10966 (or 10959 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 487939305 is about 22089.3482248798. The cubic root of 487939305 is about 787.2667951447.

The spelling of 487939305 in words is "four hundred eighty-seven million, nine hundred thirty-nine thousand, three hundred five".

Divisors: 1 3 5 7 15 21 35 49 61 105 147 183 245 305 427 735 915 1281 2135 2989 6405 8967 10883 14945 32649 44835 54415 76181 163245 228543 380905 533267 663863 1142715 1599801 1991589 2666335 3319315 4647041 7999005 9957945 13941123 23235205 32529287 69705615 97587861 162646435 487939305