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93087638545 = 5114633655513
BaseRepresentation
bin101011010110001110…
…1001010010000010001
322220021102210222221111
41112230131022100101
53011120413413140
6110432555053321
76503540605126
oct1265435122021
9286242728844
1093087638545
11365295aa690
121605aa41241
138a1670c935
144710dd874d
15264c4827ea
hex15ac74a411

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".

Divisors: 1 5 11 55 463 2315 5093 25465 3655513 18277565 40210643 201053215 1692502519 8462512595 18617527709 93087638545