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27941628 = 223111319857
BaseRepresentation
bin110101010010…
…1101011111100
31221120120201010
41222211223330
524123113003
62434515220
7456333321
oct152455374
957516633
1027941628
1114854a60
129435b10
135a34110
1439d4b48
1526be003
hex1aa5afc

27941628 has 96 divisors (see below), whose sum is σ = 80720640. Its totient is φ = 7395840.

The previous prime is 27941611. The next prime is 27941629. The reversal of 27941628 is 82614972.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27941629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32176 + ... + 33032.

It is an arithmetic number, because the mean of its divisors is an integer number (840840).

Almost surely, 227941628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27941628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40360320).

27941628 is an abundant number, since it is smaller than the sum of its proper divisors (52779012).

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

27941628 is a wasteful number, since it uses less digits than its factorization.

27941628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 905 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 27941628 is about 5285.9841089432. The cubic root of 27941628 is about 303.4477363692.

The spelling of 27941628 in words is "twenty-seven million, nine hundred forty-one thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 11 12 13 19 22 26 33 38 39 44 52 57 66 76 78 114 132 143 156 209 228 247 286 418 429 494 572 627 741 836 857 858 988 1254 1482 1714 1716 2508 2571 2717 2964 3428 5142 5434 8151 9427 10284 10868 11141 16283 16302 18854 22282 28281 32566 32604 33423 37708 44564 48849 56562 65132 66846 97698 113124 122551 133692 179113 195396 211679 245102 358226 367653 423358 490204 537339 635037 716452 735306 846716 1074678 1270074 1470612 2149356 2328469 2540148 4656938 6985407 9313876 13970814 27941628