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107686512 = 243229107241
BaseRepresentation
bin1100110101100…
…10101001110000
321111122001010100
412122302221300
5210031432022
614404032400
72445214563
oct632625160
9244561110
10107686512
115587151a
1230092700
131940533b
14104324da
1596c21ac
hex66b2a70

107686512 has 120 divisors (see below), whose sum is σ = 315984240. Its totient is φ = 34191360.

The previous prime is 107686507. The next prime is 107686519. The reversal of 107686512 is 215686701.

It is a super-2 number, since 2×1076865122 = 23192769733452288, 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 (107686519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 446712 + ... + 446952.

It is an arithmetic number, because the mean of its divisors is an integer number (2633202).

Almost surely, 2107686512 is an apocalyptic number.

107686512 is a gapful number since it is divisible by the number (12) 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 107686512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157992120).

107686512 is an abundant number, since it is smaller than the sum of its proper divisors (208297728).

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

107686512 is a wasteful number, since it uses less digits than its factorization.

107686512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 107686512 is about 10377.2111860557. The cubic root of 107686512 is about 475.7590994379.

The spelling of 107686512 in words is "one hundred seven million, six hundred eighty-six thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 29 36 48 58 72 87 107 116 144 174 214 232 241 261 321 348 428 464 482 522 642 696 723 856 963 964 1044 1284 1392 1446 1712 1926 1928 2088 2169 2568 2892 3103 3852 3856 4176 4338 5136 5784 6206 6989 7704 8676 9309 11568 12412 13978 15408 17352 18618 20967 24824 25787 27927 27956 34704 37236 41934 49648 51574 55854 55912 62901 74472 77361 83868 103148 111708 111824 125802 148944 154722 167736 206296 223416 232083 251604 309444 335472 412592 446832 464166 503208 618888 747823 928332 1006416 1237776 1495646 1856664 2243469 2991292 3713328 4486938 5982584 6730407 8973876 11965168 13460814 17947752 26921628 35895504 53843256 107686512