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415320320 = 285324469
BaseRepresentation
bin11000110000010…
…100100100000000
31001221111110101002
4120300110210000
51322310222240
6105113431132
713202110262
oct3060244400
91057443332
10415320320
111a348a338
12b710b4a8
136807698c
143d231b32
15266dcd15
hex18c14900

415320320 has 36 divisors (see below), whose sum is σ = 994825020. Its totient is φ = 166127616.

The previous prime is 415320317. The next prime is 415320331. The reversal of 415320320 is 23023514.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 200052736 + 215267584 = 14144^2 + 14672^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 415320292 and 415320301.

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, 160955 + ... + 163514.

Almost surely, 2415320320 is an apocalyptic number.

415320320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

415320320 is an abundant number, since it is smaller than the sum of its proper divisors (579504700).

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

415320320 is an equidigital number, since it uses as much as digits as its factorization.

415320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324490 (or 324476 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 415320320 is about 20379.4092161672. The cubic root of 415320320 is about 746.0954531454.

Adding to 415320320 its reverse (23023514), we get a palindrome (438343834).

The spelling of 415320320 in words is "four hundred fifteen million, three hundred twenty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 324469 648938 1297876 1622345 2595752 3244690 5191504 6489380 10383008 12978760 20766016 25957520 41532032 51915040 83064064 103830080 207660160 415320320