Base | Representation |
---|---|
bin | 101000100110100100… |
… | …1100101011100001001 |
3 | 22100001200100002222220 |
4 | 1101031021211130021 |
5 | 2412033042013301 |
6 | 104020051404253 |
7 | 6204512154102 |
oct | 1211511453411 |
9 | 270050302886 |
10 | 87193704201 |
11 | 33a8463356a |
12 | 14a94bb3689 |
13 | 82b75cc516 |
14 | 43123193a9 |
15 | 2404ceb936 |
hex | 144d265709 |
87193704201 has 4 divisors (see below), whose sum is σ = 116258272272. Its totient is φ = 58129136132.
The previous prime is 87193704173. The next prime is 87193704217. The reversal of 87193704201 is 10240739178.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 87193704201 - 227 = 87059486473 is a prime.
It is not an unprimeable number, because it can be changed into a prime (87193704271) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14532284031 + ... + 14532284036.
It is an arithmetic number, because the mean of its divisors is an integer number (29064568068).
Almost surely, 287193704201 is an apocalyptic number.
It is an amenable number.
87193704201 is a deficient number, since it is larger than the sum of its proper divisors (29064568071).
87193704201 is a wasteful number, since it uses less digits than its factorization.
87193704201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 29064568070.
The product of its (nonzero) digits is 84672, while the sum is 42.
The spelling of 87193704201 in words is "eighty-seven billion, one hundred ninety-three million, seven hundred four thousand, two hundred one".
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