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2013231113020 = 225113890810227
BaseRepresentation
bin11101010010111101111…
…011001110001100111100
321010110111112112000220001
4131102331323032030330
5230441044131104040
64140510545404044
7265310513052421
oct35227573161474
97113445460801
102013231113020
11706896529936
12286217039624
13117b01794b2a
146d625bb9d48
153757e88259a
hex1d4bdece33c

2013231113020 has 24 divisors (see below), whose sum is σ = 4265199371664. Its totient is φ = 798165962496.

The previous prime is 2013231113009. The next prime is 2013231113021. The reversal of 2013231113020 is 203111323102.

It is a super-6 number, since 6×20132311130206 (a number of 75 digits) contains 666666 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013231113021) 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, 445402854 + ... + 445407373.

It is an arithmetic number, because the mean of its divisors is an integer number (177716640486).

Almost surely, 22013231113020 is an apocalyptic number.

2013231113020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013231113020 is an abundant number, since it is smaller than the sum of its proper divisors (2251968258644).

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

2013231113020 is a wasteful number, since it uses less digits than its factorization.

2013231113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890810349 (or 890810347 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2013231113020 its reverse (203111323102), we get a palindrome (2216342436122).

The spelling of 2013231113020 in words is "two trillion, thirteen billion, two hundred thirty-one million, one hundred thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 113 226 452 565 1130 2260 890810227 1781620454 3563240908 4454051135 8908102270 17816204540 100661555651 201323111302 402646222604 503307778255 1006615556510 2013231113020