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6424145 = 572132017
BaseRepresentation
bin11000100000011001010001
3110002101021022
4120200121101
53121033040
6345405225
7105414200
oct30403121
913071238
106424145
113698612
122199815
13143c090
14bd3237
1586d6b5
hex620651

6424145 has 24 divisors (see below), whose sum is σ = 9662184. Its totient is φ = 4064256.

The previous prime is 6424141. The next prime is 6424177. The reversal of 6424145 is 5414246.

It can be written as a sum of positive squares in 4 ways, for example, as 625681 + 5798464 = 791^2 + 2408^2 .

It is not a de Polignac number, because 6424145 - 22 = 6424141 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6424141) 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, 2177 + ... + 4193.

It is an arithmetic number, because the mean of its divisors is an integer number (402591).

Almost surely, 26424145 is an apocalyptic number.

6424145 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6424145 is a deficient number, since it is larger than the sum of its proper divisors (3238039).

6424145 is a wasteful number, since it uses less digits than its factorization.

6424145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049 (or 2042 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 6424145 is about 2534.5897103871. The cubic root of 6424145 is about 185.8967419314.

The spelling of 6424145 in words is "six million, four hundred twenty-four thousand, one hundred forty-five".

Divisors: 1 5 7 13 35 49 65 91 245 455 637 2017 3185 10085 14119 26221 70595 98833 131105 183547 494165 917735 1284829 6424145