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693385 = 57111801
BaseRepresentation
bin10101001010010001001
31022020010221
42221102021
5134142020
622510041
75615350
oct2512211
91266127
10693385
11433a50
12295321
131b37b4
14140997
15da6aa
hexa9489

693385 has 16 divisors (see below), whose sum is σ = 1037952. Its totient is φ = 432000.

The previous prime is 693373. The next prime is 693397. The reversal of 693385 is 583396.

It is an interprime number because it is at equal distance from previous prime (693373) and next prime (693397).

It is not a de Polignac number, because 693385 - 25 = 693353 is a prime.

It is a Duffinian number.

693385 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 693385.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516 + ... + 1285.

It is an arithmetic number, because the mean of its divisors is an integer number (64872).

2693385 is an apocalyptic number.

It is an amenable number.

693385 is a deficient number, since it is larger than the sum of its proper divisors (344567).

693385 is a wasteful number, since it uses less digits than its factorization.

693385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824.

The product of its digits is 19440, while the sum is 34.

The square root of 693385 is about 832.6974240383. The cubic root of 693385 is about 88.5098247363.

The spelling of 693385 in words is "six hundred ninety-three thousand, three hundred eighty-five".

Divisors: 1 5 7 11 35 55 77 385 1801 9005 12607 19811 63035 99055 138677 693385