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28310107 = 77275563
BaseRepresentation
bin110101111111…
…1101001011011
31222021022011111
41223333221123
524221410412
62450441151
7462426520
oct153775133
958238144
1028310107
1114a86891
1295931b7
135b32a57
143a8d147
1527432a7
hex1affa5b

28310107 has 8 divisors (see below), whose sum is σ = 32404736. Its totient is φ = 24228072.

The previous prime is 28310089. The next prime is 28310111. The reversal of 28310107 is 70101382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28310107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28310137) 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, 2308 + ... + 7870.

It is an arithmetic number, because the mean of its divisors is an integer number (4050592).

Almost surely, 228310107 is an apocalyptic number.

28310107 is a deficient number, since it is larger than the sum of its proper divisors (4094629).

28310107 is an equidigital number, since it uses as much as digits as its factorization.

28310107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6297.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 28310107 is about 5320.7242928007. The cubic root of 28310107 is about 304.7758166265.

Adding to 28310107 its reverse (70101382), we get a palindrome (98411489).

The spelling of 28310107 in words is "twenty-eight million, three hundred ten thousand, one hundred seven".

Divisors: 1 7 727 5089 5563 38941 4044301 28310107