Base | Representation |
---|---|
bin | 101000100011011011… |
… | …0011111100101101111 |
3 | 22022210022111121202111 |
4 | 1101012312133211233 |
5 | 2411324014124312 |
6 | 104001354504451 |
7 | 6202060044124 |
oct | 1210666374557 |
9 | 268708447674 |
10 | 87088036207 |
11 | 33a2aa20647 |
12 | 14a65735127 |
13 | 829b752b93 |
14 | 430229074b |
15 | 23ea8c78a7 |
hex | 1446d9f96f |
87088036207 has 4 divisors (see below), whose sum is σ = 91671617080. Its totient is φ = 82504455336.
The previous prime is 87088036201. The next prime is 87088036213. The reversal of 87088036207 is 70263088078.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70263088078 = 2 ⋅35131544039.
It is an interprime number because it is at equal distance from previous prime (87088036201) and next prime (87088036213).
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-87088036207 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87088036201) 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, 2291790408 + ... + 2291790445.
It is an arithmetic number, because the mean of its divisors is an integer number (22917904270).
Almost surely, 287088036207 is an apocalyptic number.
87088036207 is a deficient number, since it is larger than the sum of its proper divisors (4583580873).
87088036207 is a wasteful number, since it uses less digits than its factorization.
87088036207 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4583580872.
The product of its (nonzero) digits is 903168, while the sum is 49.
The spelling of 87088036207 in words is "eighty-seven billion, eighty-eight million, thirty-six thousand, two hundred seven".
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