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2040200320 = 2753187813
BaseRepresentation
bin111100110011010…
…1111110010000000
312021011222220200211
41321212233302000
513134242402240
6534240323504
7101362262614
oct17146576200
95234886624
102040200320
11957704774
1248b313594
132668b1132
14154d61344
15be1a3bea
hex799afc80

2040200320 has 32 divisors (see below), whose sum is σ = 4877355420. Its totient is φ = 816079872.

The previous prime is 2040200291. The next prime is 2040200329. The reversal of 2040200320 is 230020402.

It can be written as a sum of positive squares in 2 ways, for example, as 1632806464 + 407393856 = 40408^2 + 20184^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 2040200320.

It is not an unprimeable number, because it can be changed into a prime (2040200329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1593267 + ... + 1594546.

Almost surely, 22040200320 is an apocalyptic number.

2040200320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040200320 is an abundant number, since it is smaller than the sum of its proper divisors (2837155100).

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

2040200320 is an equidigital number, since it uses as much as digits as its factorization.

2040200320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187832 (or 3187820 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 2040200320 is about 45168.5766877815. The cubic root of 2040200320 is about 1268.3066526060.

Adding to 2040200320 its reverse (230020402), we get a palindrome (2270220722).

The spelling of 2040200320 in words is "two billion, forty million, two hundred thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 3187813 6375626 12751252 15939065 25502504 31878130 51005008 63756260 102010016 127512520 204020032 255025040 408040064 510050080 1020100160 2040200320