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107643144 = 2337640733
BaseRepresentation
bin1100110101010…
…00000100001000
321111112211122010
412122220010020
5210024040034
614403055520
72444644260
oct632500410
9244484563
10107643144
1155841984
12300715a0
13193bb68b
14104207a0
1596b43e9
hex66a8108

107643144 has 32 divisors (see below), whose sum is σ = 307552320. Its totient is φ = 30755136.

The previous prime is 107643143. The next prime is 107643149. The reversal of 107643144 is 441346701.

It is not an unprimeable number, because it can be changed into a prime (107643143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320199 + ... + 320534.

It is an arithmetic number, because the mean of its divisors is an integer number (9611010).

Almost surely, 2107643144 is an apocalyptic number.

107643144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

107643144 is an abundant number, since it is smaller than the sum of its proper divisors (199909176).

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

107643144 is a wasteful number, since it uses less digits than its factorization.

107643144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640749 (or 640745 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 107643144 is about 10375.1213968801. The cubic root of 107643144 is about 475.6952242424.

Adding to 107643144 its reverse (441346701), we get a palindrome (548989845).

The spelling of 107643144 in words is "one hundred seven million, six hundred forty-three thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 640733 1281466 1922199 2562932 3844398 4485131 5125864 7688796 8970262 13455393 15377592 17940524 26910786 35881048 53821572 107643144