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17342420 = 225867121
BaseRepresentation
bin100001000100…
…1111111010100
31012122002022212
41002021333110
513414424140
61415412552
7300256664
oct102117724
935562285
1017342420
119875687
125984158
1337928b4
1424361a4
1517c8765
hex1089fd4

17342420 has 12 divisors (see below), whose sum is σ = 36419124. Its totient is φ = 6936960.

The previous prime is 17342417. The next prime is 17342441. The reversal of 17342420 is 2424371.

It can be written as a sum of positive squares in 2 ways, for example, as 9746884 + 7595536 = 3122^2 + 2756^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433541 + ... + 433580.

It is an arithmetic number, because the mean of its divisors is an integer number (3034927).

Almost surely, 217342420 is an apocalyptic number.

17342420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17342420 is an abundant number, since it is smaller than the sum of its proper divisors (19076704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17342420 is a wasteful number, since it uses less digits than its factorization.

17342420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867130 (or 867128 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 17342420 is about 4164.4231293182. The cubic root of 17342420 is about 258.8430845904.

Adding to 17342420 its reverse (2424371), we get a palindrome (19766791).

The spelling of 17342420 in words is "seventeen million, three hundred forty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 867121 1734242 3468484 4335605 8671210 17342420