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20040121034042 = 2198331720043769
BaseRepresentation
bin1001000111001111101000…
…10010111010010100111010
32121221211001111021012122112
410203213310102322110322
510111314131441042132
6110342145435052322
74135564611131414
oct443476422722472
977854044235575
1020040121034042
116426a7097380a
1222b7aabba10a2
13b24a10462a75
144d3d389339b4
1524b4522c9ab2
hex1239f44ba53a

20040121034042 has 32 divisors (see below), whose sum is σ = 32124551054400. Its totient is φ = 9348734095488.

The previous prime is 20040121034027. The next prime is 20040121034119. The reversal of 20040121034042 is 24043012104002.

It is a junction number, because it is equal to n+sod(n) for n = 20040121033999 and 20040121034017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9022067 + ... + 11021702.

It is an arithmetic number, because the mean of its divisors is an integer number (1003892220450).

Almost surely, 220040121034042 is an apocalyptic number.

20040121034042 is a deficient number, since it is larger than the sum of its proper divisors (12084430020358).

20040121034042 is a wasteful number, since it uses less digits than its factorization.

20040121034042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20044190.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20040121034042 its reverse (24043012104002), we get a palindrome (44083133138044).

The spelling of 20040121034042 in words is "twenty trillion, forty billion, one hundred twenty-one million, thirty-four thousand, forty-two".

Divisors: 1 2 19 38 83 166 317 634 1577 3154 6023 12046 26311 52622 499909 999818 20043769 40087538 380831611 761663222 1663632827 3327265654 6353874773 12707749546 31609023713 63218047426 120723620687 241447241374 527371606159 1054743212318 10020060517021 20040121034042