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108683648 = 2719232967
BaseRepresentation
bin1100111101001…
…10000110000000
321120111200221022
412132212012000
5210310334043
614441245012
72456536643
oct636460600
9246450838
10108683648
11563926a7
1230493768
1319694168
1410611a5a
15981c868
hex67a6180

108683648 has 128 divisors (see below), whose sum is σ = 249696000. Its totient is φ = 46835712.

The previous prime is 108683647. The next prime is 108683657. The reversal of 108683648 is 846386801.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 108683599 and 108683608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108683647) 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 15 ways as a sum of consecutive naturals, for example, 1622111 + ... + 1622177.

It is an arithmetic number, because the mean of its divisors is an integer number (1950750).

Almost surely, 2108683648 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 108683648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124848000).

108683648 is an abundant number, since it is smaller than the sum of its proper divisors (141012352).

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

108683648 is a wasteful number, since it uses less digits than its factorization.

108683648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 108683648 is about 10425.1449870014. The cubic root of 108683648 is about 477.2230394097.

The spelling of 108683648 in words is "one hundred eight million, six hundred eighty-three thousand, six hundred forty-eight".

Divisors: 1 2 4 8 16 19 23 29 32 38 46 58 64 67 76 92 116 128 134 152 184 232 268 304 368 437 464 536 551 608 667 736 874 928 1072 1102 1216 1273 1334 1472 1541 1748 1856 1943 2144 2204 2432 2546 2668 2944 3082 3496 3712 3886 4288 4408 5092 5336 6164 6992 7772 8576 8816 10184 10672 12328 12673 13984 15544 17632 20368 21344 24656 25346 27968 29279 31088 35264 36917 40736 42688 44689 49312 50692 55936 58558 62176 70528 73834 81472 85376 89378 98624 101384 117116 124352 147668 162944 178756 197248 202768 234232 248704 295336 357512 405536 468464 590672 715024 811072 849091 936928 1181344 1430048 1622144 1698182 1873856 2362688 2860096 3396364 3747712 4725376 5720192 6792728 13585456 27170912 54341824 108683648