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20130213344 = 25629069167
BaseRepresentation
bin10010101111110110…
…101010110111100000
31220221220112210101012
4102233312222313200
5312211313311334
613125300200052
71311562663433
oct225766526740
956856483335
1020130213344
11859aa8725a
123a99699028
131b8a669557
14d8d6dd81a
157cc3dc9ce
hex4afdaade0

20130213344 has 12 divisors (see below), whose sum is σ = 39631357584. Its totient is φ = 10065106656.

The previous prime is 20130213329. The next prime is 20130213379. The reversal of 20130213344 is 44331203102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314534552 + ... + 314534615.

It is an arithmetic number, because the mean of its divisors is an integer number (3302613132).

Almost surely, 220130213344 is an apocalyptic number.

It is an amenable number.

20130213344 is a deficient number, since it is larger than the sum of its proper divisors (19501144240).

20130213344 is an equidigital number, since it uses as much as digits as its factorization.

20130213344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629069177 (or 629069169 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20130213344 its reverse (44331203102), we get a palindrome (64461416446).

The spelling of 20130213344 in words is "twenty billion, one hundred thirty million, two hundred thirteen thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 32 629069167 1258138334 2516276668 5032553336 10065106672 20130213344