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20544303234 = 2371346398111
BaseRepresentation
bin10011001000100010…
…010011000010000010
31222000202201201220210
4103020202103002002
5314033320200414
613234331414550
71325051460540
oct231042230202
958022651823
1020544303234
1187927a6104
123b942b4456
131c253a2160
14dcc6d0d90
15803935e59
hex4c8893082

20544303234 has 64 divisors (see below), whose sum is σ = 50587729920. Its totient is φ = 5416441920.

The previous prime is 20544303233. The next prime is 20544303257. The reversal of 20544303234 is 43230344502.

It is not an unprimeable number, because it can be changed into a prime (20544303233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2528839 + ... + 2536949.

It is an arithmetic number, because the mean of its divisors is an integer number (790433280).

Almost surely, 220544303234 is an apocalyptic number.

20544303234 is an abundant number, since it is smaller than the sum of its proper divisors (30043426686).

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

20544303234 is a wasteful number, since it uses less digits than its factorization.

20544303234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775.

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 20544303234 its reverse (43230344502), we get a palindrome (63774647736).

The spelling of 20544303234 in words is "twenty billion, five hundred forty-four million, three hundred three thousand, two hundred thirty-four".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 4639 8111 9278 13917 16222 24333 27834 32473 48666 56777 60307 64946 97419 105443 113554 120614 170331 180921 194838 210886 316329 340662 361842 422149 632658 738101 844298 1266447 1476202 2214303 2532894 4428606 37626929 75253858 112880787 225761574 263388503 489150077 526777006 790165509 978300154 1467450231 1580331018 2934900462 3424050539 6848101078 10272151617 20544303234