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487819830481 = 232303672
BaseRepresentation
bin1110001100101000101…
…00111110010011010001
31201122011000001222202221
413012110110332103101
530443023334033411
61012033515541041
750146426100134
oct7062424762321
91648130058687
10487819830481
111789796388a5
127a661a5a781
1337002883189
141987970621b
15ca51674071
hex719453e4d1

487819830481 has 9 divisors (see below), whose sum is σ = 509968336521. Its totient is φ = 466594906932.

The previous prime is 487819830467. The next prime is 487819830529. The reversal of 487819830481 is 184038918784.

The square root of 487819830481 is 698441.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 487819830481 - 215 = 487819797713 is a prime.

It is a super-2 number, since 2×4878198304812 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487819830781) 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 8 ways as a sum of consecutive naturals, for example, 16048960 + ... + 16079326.

Almost surely, 2487819830481 is an apocalyptic number.

487819830481 is the 698441-st square number.

487819830481 is the 349221-st centered octagonal number.

It is an amenable number.

487819830481 is a deficient number, since it is larger than the sum of its proper divisors (22148506040).

487819830481 is an frugal number, since it uses more digits than its factorization.

487819830481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60780 (or 30390 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 61.

The spelling of 487819830481 in words is "four hundred eighty-seven billion, eight hundred nineteen million, eight hundred thirty thousand, four hundred eighty-one".

Divisors: 1 23 529 30367 698441 16064143 922154689 21209557847 487819830481