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489977291501290 = 2548997729150129
BaseRepresentation
bin110111101101000011011101…
…0011010000110111011101010
32101020212101000220022010121101
41233122012322122012323222
51003210241443111020130
64454032243230432014
7205130456023402555
oct15732067232067352
92336771026263541
10489977291501290
1113213822540964a
1246b54a6b66260a
131805287798c9a8
1488dd05543d69c
153b9a67907b1ca
hex1bda1ba686eea

489977291501290 has 8 divisors (see below), whose sum is σ = 881959124702340. Its totient is φ = 195990916600512.

The previous prime is 489977291501213. The next prime is 489977291501317. The reversal of 489977291501290 is 92105192779984.

It can be written as a sum of positive squares in 2 ways, for example, as 447804722991609 + 42172568509681 = 21161397^2 + 6494041^2 .

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

It is a super-2 number, since 2×4899772915012902 (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24498864575055 + ... + 24498864575074.

Almost surely, 2489977291501290 is an apocalyptic number.

489977291501290 is a deficient number, since it is larger than the sum of its proper divisors (391981833201050).

489977291501290 is a wasteful number, since it uses less digits than its factorization.

489977291501290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48997729150136.

The product of its (nonzero) digits is 205752960, while the sum is 73.

The spelling of 489977291501290 in words is "four hundred eighty-nine trillion, nine hundred seventy-seven billion, two hundred ninety-one million, five hundred one thousand, two hundred ninety".

Divisors: 1 2 5 10 48997729150129 97995458300258 244988645750645 489977291501290