Base | Representation |
---|---|
bin | 101000110101110011… |
… | …0000101000110010000 |
3 | 22101101021110201220200 |
4 | 1101223212011012100 |
5 | 2414104322143014 |
6 | 104142455335200 |
7 | 6223253603460 |
oct | 1215346050620 |
9 | 271337421820 |
10 | 87704490384 |
11 | 34216997805 |
12 | 14bb8081500 |
13 | 836938cc74 |
14 | 43600bbba0 |
15 | 2434a95a09 |
hex | 146b985190 |
87704490384 has 120 divisors (see below), whose sum is σ = 288096768960. Its totient is φ = 24381160704.
The previous prime is 87704490361. The next prime is 87704490443. The reversal of 87704490384 is 48309440778.
87704490384 is a `hidden beast` number, since 8 + 7 + 70 + 4 + 490 + 3 + 84 = 666.
It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 87704490384.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1138494 + ... + 1213085.
It is an arithmetic number, because the mean of its divisors is an integer number (2400806408).
Almost surely, 287704490384 is an apocalyptic number.
87704490384 is a gapful number since it is divisible by the number (84) formed by its first and last digit.
It is an amenable number.
87704490384 is an abundant number, since it is smaller than the sum of its proper divisors (200392278576).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87704490384 is a wasteful number, since it uses less digits than its factorization.
87704490384 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2351637 (or 2351628 counting only the distinct ones).
The product of its (nonzero) digits is 5419008, while the sum is 54.
The spelling of 87704490384 in words is "eighty-seven billion, seven hundred four million, four hundred ninety thousand, three hundred eighty-four".
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