Base | Representation |
---|---|
bin | 101000101110111011… |
… | …1001010100100010000 |
3 | 22100210012221002112202 |
4 | 1101131313022210100 |
5 | 2413121331310313 |
6 | 104103545142332 |
7 | 6214455324143 |
oct | 1213567124420 |
9 | 270705832482 |
10 | 87474088208 |
11 | 3410892a191 |
12 | 14b52a8a9a8 |
13 | 833071c910 |
14 | 433b66405a |
15 | 241e733558 |
hex | 145ddca910 |
87474088208 has 20 divisors (see below), whose sum is σ = 182518049868. Its totient is φ = 40372656000.
The previous prime is 87474088127. The next prime is 87474088241. The reversal of 87474088208 is 80288047478.
It can be written as a sum of positive squares in 2 ways, for example, as 18477508624 + 68996579584 = 135932^2 + 262672^2 .
It is a super-2 number, since 2×874740882082 (a number of 23 digits) contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210274043 + ... + 210274458.
Almost surely, 287474088208 is an apocalyptic number.
It is an amenable number.
87474088208 is an abundant number, since it is smaller than the sum of its proper divisors (95043961660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87474088208 is a wasteful number, since it uses less digits than its factorization.
87474088208 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 420548522 (or 420548516 counting only the distinct ones).
The product of its (nonzero) digits is 6422528, while the sum is 56.
The spelling of 87474088208 in words is "eighty-seven billion, four hundred seventy-four million, eighty-eight thousand, two hundred eight".
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