Base | Representation |
---|---|
bin | 101011010110001110… |
… | …1001010010000010001 |
3 | 22220021102210222221111 |
4 | 1112230131022100101 |
5 | 3011120413413140 |
6 | 110432555053321 |
7 | 6503540605126 |
oct | 1265435122021 |
9 | 286242728844 |
10 | 93087638545 |
11 | 365295aa690 |
12 | 1605aa41241 |
13 | 8a1670c935 |
14 | 4710dd874d |
15 | 264c4827ea |
hex | 15ac74a411 |
93087638545 has 16 divisors (see below), whose sum is σ = 122123411712. Its totient is φ = 67553861760.
The previous prime is 93087638509. The next prime is 93087638549. The reversal of 93087638545 is 54583678039.
It is not a de Polignac number, because 93087638545 - 211 = 93087636497 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 93087638545.
It is not an unprimeable number, because it can be changed into a prime (93087638549) 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, 1802292 + ... + 1853221.
It is an arithmetic number, because the mean of its divisors is an integer number (7632713232).
Almost surely, 293087638545 is an apocalyptic number.
It is an amenable number.
93087638545 is a deficient number, since it is larger than the sum of its proper divisors (29035773167).
93087638545 is a wasteful number, since it uses less digits than its factorization.
93087638545 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3655992.
The product of its (nonzero) digits is 21772800, while the sum is 58.
The spelling of 93087638545 in words is "ninety-three billion, eighty-seven million, six hundred thirty-eight thousand, five hundred forty-five".
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