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487818444 = 22340651537
BaseRepresentation
bin11101000100111…
…000010011001100
31020222220202002210
4131010320103030
51444340142234
6120223350420
715042250131
oct3504702314
91228822083
10487818444
112303a7243
12117452410
137a0ab589
1448b04588
152cc5dbe9
hex1d1384cc

487818444 has 12 divisors (see below), whose sum is σ = 1138243064. Its totient is φ = 162606144.

The previous prime is 487818439. The next prime is 487818469. The reversal of 487818444 is 444818784.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×4878184442 = 475933668613162272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 487818393 and 487818402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20325757 + ... + 20325780.

Almost surely, 2487818444 is an apocalyptic number.

It is an amenable number.

487818444 is an abundant number, since it is smaller than the sum of its proper divisors (650424620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

487818444 is a wasteful number, since it uses less digits than its factorization.

487818444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40651544 (or 40651542 counting only the distinct ones).

The product of its digits is 917504, while the sum is 48.

The square root of 487818444 is about 22086.6123251168. The cubic root of 487818444 is about 787.2017886242.

The spelling of 487818444 in words is "four hundred eighty-seven million, eight hundred eighteen thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 40651537 81303074 121954611 162606148 243909222 487818444