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107300021 = 313461291
BaseRepresentation
bin1100110010101…
…00010010110101
321110220101221212
412121110102311
5204432100041
614351451205
72442015023
oct631242265
9243811855
10107300021
1155628104
122bb26b05
13192cb44a
1410371713
1596478eb
hex66544b5

107300021 has 4 divisors (see below), whose sum is σ = 110761344. Its totient is φ = 103838700.

The previous prime is 107300003. The next prime is 107300023. The reversal of 107300021 is 120003701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-107300021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 107299969 and 107300005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107300023) 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 3 ways as a sum of consecutive naturals, for example, 1730615 + ... + 1730676.

It is an arithmetic number, because the mean of its divisors is an integer number (27690336).

Almost surely, 2107300021 is an apocalyptic number.

It is an amenable number.

107300021 is a deficient number, since it is larger than the sum of its proper divisors (3461323).

107300021 is an equidigital number, since it uses as much as digits as its factorization.

107300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3461322.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 107300021 is about 10358.5723437161. The cubic root of 107300021 is about 475.1892446300.

Adding to 107300021 its reverse (120003701), we get a palindrome (227303722).

The spelling of 107300021 in words is "one hundred seven million, three hundred thousand, twenty-one".

Divisors: 1 31 3461291 107300021