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20163731023234 = 2616725118615281
BaseRepresentation
bin1001001010110101111000…
…00001100110010110000010
32122101122010002021021100101
410211122330001212112002
510120330310120220414
6110515031250113014
74150532023531561
oct445327401462602
978348102237311
1020163731023234
11647443254a177
122317a4887b76a
13b3357c516bc6
144d9d034a9bd8
1524e789166a74
hex1256bc066582

20163731023234 has 64 divisors (see below), whose sum is σ = 31347323892864. Its totient is φ = 9722592000000.

The previous prime is 20163731023231. The next prime is 20163731023279. The reversal of 20163731023234 is 43232013736102.

It is a junction number, because it is equal to n+sod(n) for n = 20163731023193 and 20163731023202.

It is not an unprimeable number, because it can be changed into a prime (20163731023231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3818162674 + ... + 3818167954.

It is an arithmetic number, because the mean of its divisors is an integer number (489801935826).

Almost surely, 220163731023234 is an apocalyptic number.

20163731023234 is a deficient number, since it is larger than the sum of its proper divisors (11183592869630).

20163731023234 is a wasteful number, since it uses less digits than its factorization.

20163731023234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523.

The product of its (nonzero) digits is 108864, while the sum is 37.

Adding to 20163731023234 its reverse (43232013736102), we get a palindrome (63395744759336).

The spelling of 20163731023234 in words is "twenty trillion, one hundred sixty-three billion, seven hundred thirty-one million, twenty-three thousand, two hundred thirty-four".

Divisors: 1 2 61 67 122 134 251 502 1861 3722 4087 5281 8174 10562 15311 16817 30622 33634 113521 124687 227042 249374 322141 353827 467111 644282 707654 934222 1025837 1325531 2051674 2651062 7605907 9827941 15211814 19655882 21583447 28493771 31296437 43166894 56987542 62592874 80857391 88810577 161714782 177621154 599504401 658472047 1199008802 1316944094 1909082657 2466813191 3818165314 4933626382 5417445197 10834890394 40166794867 80333589734 150475604651 165276483797 300951209302 330552967594 10081865511617 20163731023234