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11882808 = 2333729271
BaseRepresentation
bin101101010101…
…000100111000
3211100201011000
4231111010320
511020222213
61102405000
7203000520
oct55250470
924321130
1011882808
116786803
123b90760
132600862
141814680
15109ac73
hexb55138

11882808 has 128 divisors (see below), whose sum is σ = 39168000. Its totient is φ = 3265920.

The previous prime is 11882807. The next prime is 11882821. The reversal of 11882808 is 80828811.

It is a happy number.

It is a super-2 number, since 2×118828082 = 282402251929728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11882807) 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, 43713 + ... + 43983.

It is an arithmetic number, because the mean of its divisors is an integer number (306000).

Almost surely, 211882808 is an apocalyptic number.

11882808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11882808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19584000).

11882808 is an abundant number, since it is smaller than the sum of its proper divisors (27285192).

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

11882808 is a wasteful number, since it uses less digits than its factorization.

11882808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 36.

The square root of 11882808 is about 3447.1449055704. The cubic root of 11882808 is about 228.1951238229.

11882808 divided by its sum of digits (36) gives a triangular number (330078 = T812).

The spelling of 11882808 in words is "eleven million, eight hundred eighty-two thousand, eight hundred eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 29 36 42 54 56 58 63 72 84 87 108 116 126 168 174 189 203 216 232 252 261 271 348 378 406 504 522 542 609 696 756 783 812 813 1044 1084 1218 1512 1566 1624 1626 1827 1897 2088 2168 2436 2439 3132 3252 3654 3794 4872 4878 5481 5691 6264 6504 7308 7317 7588 7859 9756 10962 11382 14616 14634 15176 15718 17073 19512 21924 22764 23577 29268 31436 34146 43848 45528 47154 51219 55013 58536 62872 68292 70731 94308 102438 110026 136584 141462 165039 188616 204876 212193 220052 282924 330078 409752 424386 440104 495117 565848 660156 848772 990234 1320312 1485351 1697544 1980468 2970702 3960936 5941404 11882808