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20013130322 = 217761563401
BaseRepresentation
bin10010101000111000…
…000010001001010010
31220122202020100122222
4102220320002021102
5311441330132242
613105514501042
71305641541503
oct225070021122
956582210588
1020013130322
11853a988029
123a66434782
131b6c324263
14d7bd42baa
157c1eb15d2
hex4a8e02252

20013130322 has 8 divisors (see below), whose sum is σ = 30021438972. Its totient is φ = 10005984000.

The previous prime is 20013130273. The next prime is 20013130351. The reversal of 20013130322 is 22303131002.

It can be written as a sum of positive squares in 2 ways, for example, as 17958412081 + 2054718241 = 134009^2 + 45329^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20013130322.

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, 246179 + ... + 317222.

Almost surely, 220013130322 is an apocalyptic number.

20013130322 is a deficient number, since it is larger than the sum of its proper divisors (10008308650).

20013130322 is a wasteful number, since it uses less digits than its factorization.

20013130322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581164.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20013130322 its reverse (22303131002), we get a palindrome (42316261324).

The spelling of 20013130322 in words is "twenty billion, thirteen million, one hundred thirty thousand, three hundred twenty-two".

Divisors: 1 2 17761 35522 563401 1126802 10006565161 20013130322