Base | Representation |
---|---|
bin | 101000101000011111… |
… | …0110111110111110001 |
3 | 22100020011022221002010 |
4 | 1101100332313313301 |
5 | 2412201022124402 |
6 | 104030305513133 |
7 | 6206222542653 |
oct | 1212076676761 |
9 | 270204287063 |
10 | 87258004977 |
11 | 34007961700 |
12 | 14ab26427a9 |
13 | 82c7a23c10 |
14 | 431aa966d3 |
15 | 240a79da6c |
hex | 1450fb7df1 |
87258004977 has 48 divisors (see below), whose sum is σ = 137996901504. Its totient is φ = 48717292800.
The previous prime is 87258004949. The next prime is 87258004993. The reversal of 87258004977 is 77940085278.
It is not a de Polignac number, because 87258004977 - 210 = 87258003953 is a prime.
It is a super-2 number, since 2×872580049772 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (87258004907) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2355277 + ... + 2392037.
It is an arithmetic number, because the mean of its divisors is an integer number (2874935448).
Almost surely, 287258004977 is an apocalyptic number.
It is an amenable number.
87258004977 is a deficient number, since it is larger than the sum of its proper divisors (50738896527).
87258004977 is a wasteful number, since it uses less digits than its factorization.
87258004977 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37302 (or 37291 counting only the distinct ones).
The product of its (nonzero) digits is 7902720, while the sum is 57.
The spelling of 87258004977 in words is "eighty-seven billion, two hundred fifty-eight million, four thousand, nine hundred seventy-seven".
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