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20442104412 = 2236729638581
BaseRepresentation
bin10011000010011100…
…011100001001011100
31221202122102111111020
4103002130130021130
5313331134320122
613220241124140
71322401010022
oct230234341134
957678374436
1020442104412
118740042674
123b66029650
131c0a16b892
14dbccca712
157e9999c5c
hex4c271c25c

20442104412 has 48 divisors (see below), whose sum is σ = 48432139392. Its totient is φ = 6709285440.

The previous prime is 20442104407. The next prime is 20442104443. The reversal of 20442104412 is 21440124402.

It is a super-2 number, since 2×204421044122 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2377962 + ... + 2386542.

It is an arithmetic number, because the mean of its divisors is an integer number (1009002904).

Almost surely, 220442104412 is an apocalyptic number.

It is an amenable number.

20442104412 is an abundant number, since it is smaller than the sum of its proper divisors (27990034980).

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

20442104412 is a wasteful number, since it uses less digits than its factorization.

20442104412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11618 (or 11616 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 20442104412 its reverse (21440124402), we get a palindrome (41882228814).

The spelling of 20442104412 in words is "twenty billion, four hundred forty-two million, one hundred four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 67 134 201 268 402 804 2963 5926 8581 8889 11852 17162 17778 25743 34324 35556 51486 102972 198521 397042 574927 595563 794084 1149854 1191126 1724781 2299708 2382252 3449562 6899124 25425503 50851006 76276509 101702012 152553018 305106036 1703508701 3407017402 5110526103 6814034804 10221052206 20442104412