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20441305542 = 237486697751
BaseRepresentation
bin10011000010011001…
…011001000111000110
31221202120220220122110
4103002121121013012
5313330433234132
613220212041450
71322361141660
oct230231310706
957676826573
1020441305542
11873a647449
123b65903286
131c09c4c088
14dbcb5d530
157e988d1cc
hex4c26591c6

20441305542 has 16 divisors (see below), whose sum is σ = 46722984192. Its totient is φ = 5840373000.

The previous prime is 20441305523. The next prime is 20441305559. The reversal of 20441305542 is 24550314402.

It is a super-2 number, since 2×204413055422 (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 7 ways as a sum of consecutive naturals, for example, 243348834 + ... + 243348917.

It is an arithmetic number, because the mean of its divisors is an integer number (2920186512).

Almost surely, 220441305542 is an apocalyptic number.

20441305542 is an abundant number, since it is smaller than the sum of its proper divisors (26281678650).

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

20441305542 is a wasteful number, since it uses less digits than its factorization.

20441305542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486697763.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 20441305542 its reverse (24550314402), we get a palindrome (44991619944).

The spelling of 20441305542 in words is "twenty billion, four hundred forty-one million, three hundred five thousand, five hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 486697751 973395502 1460093253 2920186506 3406884257 6813768514 10220652771 20441305542