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8423605 = 53745533
BaseRepresentation
bin100000001000…
…100010110101
3120211222000101
4200020202311
54124023410
6500314101
7131412421
oct40104265
916758011
108423605
114833863
1229a2931
13198c1a8
141193b81
15b15d3a
hex8088b5

8423605 has 8 divisors (see below), whose sum is σ = 10381752. Its totient is φ = 6556608.

The previous prime is 8423603. The next prime is 8423617. The reversal of 8423605 is 5063248.

8423605 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2283121 + 6140484 = 1511^2 + 2478^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8423605 - 21 = 8423603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22582 + ... + 22951.

It is an arithmetic number, because the mean of its divisors is an integer number (1297719).

Almost surely, 28423605 is an apocalyptic number.

It is an amenable number.

8423605 is a deficient number, since it is larger than the sum of its proper divisors (1958147).

8423605 is a wasteful number, since it uses less digits than its factorization.

8423605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45575.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 8423605 is about 2902.3447417562. The cubic root of 8423605 is about 203.4695062640.

The spelling of 8423605 in words is "eight million, four hundred twenty-three thousand, six hundred five".

Divisors: 1 5 37 185 45533 227665 1684721 8423605