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28107701 = 73834639
BaseRepresentation
bin110101100111…
…0001110110101
31221220000111222
41223032032311
524143421301
62442240125
7460624436
oct153161665
957800458
1028107701
1114958806
1294b6045
135a9189b
143a3948d
15270331b
hex1ace3b5

28107701 has 8 divisors (see below), whose sum is σ = 28842240. Its totient is φ = 27382752.

The previous prime is 28107697. The next prime is 28107727. The reversal of 28107701 is 10770182.

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

It is a cyclic number.

It is not a de Polignac number, because 28107701 - 22 = 28107697 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 (28107791) 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, 3740 + ... + 8378.

It is an arithmetic number, because the mean of its divisors is an integer number (3605280).

Almost surely, 228107701 is an apocalyptic number.

It is an amenable number.

28107701 is a deficient number, since it is larger than the sum of its proper divisors (734539).

28107701 is an equidigital number, since it uses as much as digits as its factorization.

28107701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795.

The product of its (nonzero) digits is 784, while the sum is 26.

The square root of 28107701 is about 5301.6696426692. The cubic root of 28107701 is about 304.0477367614.

Adding to 28107701 its reverse (10770182), we get a palindrome (38877883).

The spelling of 28107701 in words is "twenty-eight million, one hundred seven thousand, seven hundred one".

Divisors: 1 73 83 4639 6059 338647 385037 28107701