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28044045810 = 23251183341293
BaseRepresentation
bin11010000111100011…
…100010110111110010
32200101102211010122100
4122013203202313302
5424413233431220
620514441121230
72011646312334
oct320743426762
980342733570
1028044045810
1110991150770
125527a89216
13284c09cc61
141500777454
15ae2066d90
hex6878e2df2

28044045810 has 96 divisors (see below), whose sum is σ = 80501698368. Its totient is φ = 6716626560.

The previous prime is 28044045787. The next prime is 28044045851. The reversal of 28044045810 is 1854044082.

It is a super-2 number, since 2×280440458102 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 88477 + ... + 252816.

It is an arithmetic number, because the mean of its divisors is an integer number (838559358).

Almost surely, 228044045810 is an apocalyptic number.

28044045810 is an abundant number, since it is smaller than the sum of its proper divisors (52457652558).

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

28044045810 is a wasteful number, since it uses less digits than its factorization.

28044045810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341400 (or 341397 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

Adding to 28044045810 its reverse (1854044082), we get a palindrome (29898089892).

The spelling of 28044045810 in words is "twenty-eight billion, forty-four million, forty-five thousand, eight hundred ten".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 83 90 99 110 165 166 198 249 330 415 495 498 747 830 913 990 1245 1494 1826 2490 2739 3735 4565 5478 7470 8217 9130 13695 16434 27390 41085 82170 341293 682586 1023879 1706465 2047758 3071637 3412930 3754223 5119395 6143274 7508446 10238790 11262669 15358185 18771115 22525338 28327319 30716370 33788007 37542230 56313345 56654638 67576014 84981957 112626690 141636595 168940035 169963914 254945871 283273190 311600509 337880070 424909785 509891742 623201018 849819570 934801527 1274729355 1558002545 1869603054 2549458710 2804404581 3116005090 4674007635 5608809162 9348015270 14022022905 28044045810