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107385221 = 279738393
BaseRepresentation
bin1100110011010…
…01000110000101
321111001201211102
412121221012011
5204442311341
614353345445
72442521306
oct631510605
9244051742
10107385221
1155686119
122bb68285
131932b168
14103947ad
159662c9b
hex6669185

107385221 has 4 divisors (see below), whose sum is σ = 107426412. Its totient is φ = 107344032.

The previous prime is 107385217. The next prime is 107385227. The reversal of 107385221 is 122583701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56776225 + 50608996 = 7535^2 + 7114^2 .

It is a cyclic number.

It is not a de Polignac number, because 107385221 - 22 = 107385217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107385227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16400 + ... + 21993.

It is an arithmetic number, because the mean of its divisors is an integer number (26856603).

Almost surely, 2107385221 is an apocalyptic number.

It is an amenable number.

107385221 is a deficient number, since it is larger than the sum of its proper divisors (41191).

107385221 is an equidigital number, since it uses as much as digits as its factorization.

107385221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41190.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 107385221 is about 10362.6840635040. The cubic root of 107385221 is about 475.3149836938.

The spelling of 107385221 in words is "one hundred seven million, three hundred eighty-five thousand, two hundred twenty-one".

Divisors: 1 2797 38393 107385221