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20031330131204 = 227715404647543
BaseRepresentation
bin1001000110111111010000…
…10100010001110100000100
32121220222100211122002000112
410203133220110101310010
510111143131003144304
6110334133243332152
74135134014524160
oct443375024216404
977828324562015
1020031330131204
11642326a709357
1222b6257b21058
13b23c3c103702
144d37431cbca0
1524b0da652b6e
hex1237e8511d04

20031330131204 has 12 divisors (see below), whose sum is σ = 40062660262464. Its totient is φ = 8584855770504.

The previous prime is 20031330131167. The next prime is 20031330131209. The reversal of 20031330131204 is 40213103313002.

20031330131204 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20031330131204.

It is not an unprimeable number, because it can be changed into a prime (20031330131209) 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 3 ways as a sum of consecutive naturals, for example, 357702323744 + ... + 357702323799.

It is an arithmetic number, because the mean of its divisors is an integer number (3338555021872).

Almost surely, 220031330131204 is an apocalyptic number.

It is an amenable number.

20031330131204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20031330131204 is a wasteful number, since it uses less digits than its factorization.

20031330131204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715404647554 (or 715404647552 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20031330131204 its reverse (40213103313002), we get a palindrome (60244433444206).

The spelling of 20031330131204 in words is "twenty trillion, thirty-one billion, three hundred thirty million, one hundred thirty-one thousand, two hundred four".

Divisors: 1 2 4 7 14 28 715404647543 1430809295086 2861618590172 5007832532801 10015665065602 20031330131204