Base | Representation |
---|---|
bin | 101000100110111111… |
… | …1111001001101011001 |
3 | 22100002200010102011000 |
4 | 1101031333321031121 |
5 | 2412100213102303 |
6 | 104021320455213 |
7 | 6205044160500 |
oct | 1211577711531 |
9 | 270080112130 |
10 | 87207940953 |
11 | 33a91677881 |
12 | 14a9991a509 |
13 | 82ba545633 |
14 | 4314183837 |
15 | 24061aeda3 |
hex | 144dff9359 |
87207940953 has 96 divisors (see below), whose sum is σ = 152889285120. Its totient is φ = 48974919840.
The previous prime is 87207940921. The next prime is 87207940969. The reversal of 87207940953 is 35904970278.
It is not a de Polignac number, because 87207940953 - 25 = 87207940921 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 87207940953.
It is not an unprimeable number, because it can be changed into a prime (87207940903) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 50613150 + ... + 50614872.
It is an arithmetic number, because the mean of its divisors is an integer number (1592596720).
Almost surely, 287207940953 is an apocalyptic number.
It is an amenable number.
87207940953 is a deficient number, since it is larger than the sum of its proper divisors (65681344167).
87207940953 is a wasteful number, since it uses less digits than its factorization.
87207940953 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2384 (or 2371 counting only the distinct ones).
The product of its (nonzero) digits is 3810240, while the sum is 54.
The spelling of 87207940953 in words is "eighty-seven billion, two hundred seven million, nine hundred forty thousand, nine hundred fifty-three".
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