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487521717 = 3315242169
BaseRepresentation
bin11101000011101…
…111110110110101
31020222100200001220
4131003233312311
51444301143332
6120213140553
715036603054
oct3503576665
91228320056
10487521717
11230214311
1211732a759
137a0064b7
1448a6839b
152cc00d2c
hex1d0efdb5

487521717 has 8 divisors (see below), whose sum is σ = 670997760. Its totient is φ = 314530080.

The previous prime is 487521691. The next prime is 487521721. The reversal of 487521717 is 717125784.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 487521717 - 26 = 487521653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487521737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2620992 + ... + 2621177.

It is an arithmetic number, because the mean of its divisors is an integer number (83874720).

Almost surely, 2487521717 is an apocalyptic number.

It is an amenable number.

487521717 is a deficient number, since it is larger than the sum of its proper divisors (183476043).

487521717 is a wasteful number, since it uses less digits than its factorization.

487521717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5242203.

The product of its digits is 109760, while the sum is 42.

The square root of 487521717 is about 22079.8939535497. The cubic root of 487521717 is about 787.0421449391.

The spelling of 487521717 in words is "four hundred eighty-seven million, five hundred twenty-one thousand, seven hundred seventeen".

Divisors: 1 3 31 93 5242169 15726507 162507239 487521717