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28300006 = 2719106391
BaseRepresentation
bin110101111110…
…1001011100110
31222020210022101
41223331023212
524221100011
62450322314
7462355210
oct153751346
958223271
1028300006
1114a7a239
12958939a
135b2b287
143a895b0
1527402c1
hex1afd2e6

28300006 has 16 divisors (see below), whose sum is σ = 51068160. Its totient is φ = 11490120.

The previous prime is 28300003. The next prime is 28300007. The reversal of 28300006 is 60000382.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28300001) 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, 52930 + ... + 53461.

It is an arithmetic number, because the mean of its divisors is an integer number (3191760).

Almost surely, 228300006 is an apocalyptic number.

28300006 is a deficient number, since it is larger than the sum of its proper divisors (22768154).

28300006 is a wasteful number, since it uses less digits than its factorization.

28300006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106419.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 28300006 is about 5319.7749952418. The cubic root of 28300006 is about 304.7395644765.

Adding to 28300006 its reverse (60000382), we get a palindrome (88300388).

The spelling of 28300006 in words is "twenty-eight million, three hundred thousand, six".

Divisors: 1 2 7 14 19 38 133 266 106391 212782 744737 1489474 2021429 4042858 14150003 28300006