Base | Representation |
---|---|
bin | 101000100001010010… |
… | …0000001110110100101 |
3 | 22022121022010012221011 |
4 | 1101002210001312211 |
5 | 2411202104240244 |
6 | 103550304422221 |
7 | 6200224351411 |
oct | 1210244016645 |
9 | 268538105834 |
10 | 87016086949 |
11 | 339a3349050 |
12 | 14a45617971 |
13 | 828988105c |
14 | 42d68c1d41 |
15 | 23e4414434 |
hex | 1442901da5 |
87016086949 has 16 divisors (see below), whose sum is σ = 95283444096. Its totient is φ = 78808504000.
The previous prime is 87016086907. The next prime is 87016086959. The reversal of 87016086949 is 94968061078.
It is a cyclic number.
It is not a de Polignac number, because 87016086949 - 219 = 87015562661 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 87016086893 and 87016086902.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87016086959) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6622224 + ... + 6635350.
It is an arithmetic number, because the mean of its divisors is an integer number (5955215256).
Almost surely, 287016086949 is an apocalyptic number.
It is an amenable number.
87016086949 is a deficient number, since it is larger than the sum of its proper divisors (8267357147).
87016086949 is a wasteful number, since it uses less digits than its factorization.
87016086949 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15356.
The product of its (nonzero) digits is 5225472, while the sum is 58.
The spelling of 87016086949 in words is "eighty-seven billion, sixteen million, eighty-six thousand, nine hundred forty-nine".
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