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28830607 = 137393001
BaseRepresentation
bin110110111111…
…0101110001111
32000020202011021
41231332232033
524340034412
62505535011
7500025151
oct155765617
960222137
1028830607
1115301953
1297a4467
135c85940
143b86ad1
1527e7607
hex1b7eb8f

28830607 has 8 divisors (see below), whose sum is σ = 31100720. Its totient is φ = 26568000.

The previous prime is 28830601. The next prime is 28830643. The reversal of 28830607 is 70603882.

It is a happy number.

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 28830607 - 223 = 20441999 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 (28830601) 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, 8107 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (3887590).

Almost surely, 228830607 is an apocalyptic number.

28830607 is a deficient number, since it is larger than the sum of its proper divisors (2270113).

28830607 is a wasteful number, since it uses less digits than its factorization.

28830607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 28830607 is about 5369.4140276198. The cubic root of 28830607 is about 306.6323198510.

The spelling of 28830607 in words is "twenty-eight million, eight hundred thirty thousand, six hundred seven".

Divisors: 1 13 739 3001 9607 39013 2217739 28830607