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20302121103004 = 22133111787702511
BaseRepresentation
bin1001001110110111101001…
…01101110110111010011100
32122212212022201121201201101
410213123310231312322130
510130112221000244004
6111102355441522444
74163531326023106
oct447336455667234
978785281551641
1020302121103004
1165180990a6424
12233a82b343424
13b436356ab980
145028b0d80576
15253188879ba4
hex1276f4b76e9c

20302121103004 has 48 divisors (see below), whose sum is σ = 38406252358656. Its totient is φ = 9334840478400.

The previous prime is 20302121103001. The next prime is 20302121103037. The reversal of 20302121103004 is 40030112120302.

It is a happy number.

It is a super-2 number, since 2×203021211030042 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302121103001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28548109 + ... + 29250619.

It is an arithmetic number, because the mean of its divisors is an integer number (800130257472).

Almost surely, 220302121103004 is an apocalyptic number.

It is an amenable number.

20302121103004 is a deficient number, since it is larger than the sum of its proper divisors (18104131255652).

20302121103004 is a wasteful number, since it uses less digits than its factorization.

20302121103004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704626 (or 704624 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20302121103004 its reverse (40030112120302), we get a palindrome (60332233223306).

The spelling of 20302121103004 in words is "twenty trillion, three hundred two billion, one hundred twenty-one million, one hundred three thousand, four".

Divisors: 1 2 4 13 26 52 311 622 1244 1787 3574 4043 7148 8086 16172 23231 46462 92924 555757 702511 1111514 1405022 2223028 2810044 7224841 9132643 14449682 18265286 28899364 36530572 218480921 436961842 873923684 1255387157 2510774314 2840251973 5021548628 5680503946 11361007892 16320033041 32640066082 65280132164 390425405827 780850811654 1561701623308 5075530275751 10151060551502 20302121103004