Search a number
-
+
2605085 = 57531
BaseRepresentation
bin1001111100000000011101
311220100111122
421330000131
51131330320
6131500325
731100000
oct11740035
94810448
102605085
11151a26a
12a576a5
13702992
144bb537
15366d25
hex27c01d

2605085 has 24 divisors (see below), whose sum is σ = 3764736. Its totient is φ = 1728720.

The previous prime is 2605081. The next prime is 2605087. The reversal of 2605085 is 5805062.

It is not a de Polignac number, because 2605085 - 22 = 2605081 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84020 + ... + 84050.

It is an arithmetic number, because the mean of its divisors is an integer number (156864).

22605085 is an apocalyptic number.

It is an amenable number.

2605085 is a deficient number, since it is larger than the sum of its proper divisors (1159651).

2605085 is an frugal number, since it uses more digits than its factorization.

2605085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 43 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2605085 is about 1614.0275710161. The cubic root of 2605085 is about 137.5964722426.

The spelling of 2605085 in words is "two million, six hundred five thousand, eighty-five".

Divisors: 1 5 7 31 35 49 155 217 245 343 1085 1519 1715 2401 7595 10633 12005 16807 53165 74431 84035 372155 521017 2605085