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20003113131222 = 2313256450168349
BaseRepresentation
bin1001000110001010101100…
…11100111101110011010110
32121211021112100100221212010
410203011112130331303112
510110212333430144342
6110313145303205050
74133114535140124
oct443052634756326
977737470327763
1020003113131222
1164122aa978661
1222b08a2146786
13b21393258910
144d22278b2914
1524a4d832529c
hex12315673dcd6

20003113131222 has 16 divisors (see below), whose sum is σ = 43083628282800. Its totient is φ = 6154804040352.

The previous prime is 20003113131187. The next prime is 20003113131227. The reversal of 20003113131222 is 22213131130002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003113131227) 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, 128225084097 + ... + 128225084252.

It is an arithmetic number, because the mean of its divisors is an integer number (2692726767675).

Almost surely, 220003113131222 is an apocalyptic number.

20003113131222 is an abundant number, since it is smaller than the sum of its proper divisors (23080515151578).

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

20003113131222 is a wasteful number, since it uses less digits than its factorization.

20003113131222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256450168367.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20003113131222 its reverse (22213131130002), we get a palindrome (42216244261224).

The spelling of 20003113131222 in words is "twenty trillion, three billion, one hundred thirteen million, one hundred thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 13 26 39 78 256450168349 512900336698 769350505047 1538701010094 3333852188537 6667704377074 10001556565611 20003113131222