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2013020123320 = 235358091405387
BaseRepresentation
bin11101010010110001010…
…110010111000010111000
321010102221211111122102201
4131102301112113002320
5230440131122421240
64140434011235544
7265302341504203
oct35226126270270
97112854448381
102013020123320
11706798420188
12286178448bb4
13117a99b6065b
146d605b7693a
153756b0a6d9a
hex1d4b15970b8

2013020123320 has 32 divisors (see below), whose sum is σ = 4529424985200. Its totient is φ = 805184990208.

The previous prime is 2013020123299. The next prime is 2013020123329. The reversal of 2013020123320 is 233210203102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013020123329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729667 + ... + 2135053.

Almost surely, 22013020123320 is an apocalyptic number.

2013020123320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013020123320 is an abundant number, since it is smaller than the sum of its proper divisors (2516404861880).

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

2013020123320 is a wasteful number, since it uses less digits than its factorization.

2013020123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441207 (or 1441203 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 2013020123320 its reverse (233210203102), we get a palindrome (2246230326422).

The spelling of 2013020123320 in words is "two trillion, thirteen billion, twenty million, one hundred twenty-three thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 35809 71618 143236 179045 286472 358090 716180 1405387 1432360 2810774 5621548 7026935 11243096 14053870 28107740 56215480 50325503083 100651006166 201302012332 251627515415 402604024664 503255030830 1006510061660 2013020123320