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28879046 = 272062789
BaseRepresentation
bin110111000101…
…0100011000110
32000100012121022
41232022203012
524343112141
62510551142
7500316320
oct156124306
960305538
1028879046
1115335289
1298084b2
135ca19c1
143b9a610
152806b4b
hex1b8a8c6

28879046 has 8 divisors (see below), whose sum is σ = 49506960. Its totient is φ = 12376728.

The previous prime is 28879013. The next prime is 28879049. The reversal of 28879046 is 64097882.

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

It is a junction number, because it is equal to n+sod(n) for n = 28878988 and 28879006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28879049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1031381 + ... + 1031408.

It is an arithmetic number, because the mean of its divisors is an integer number (6188370).

Almost surely, 228879046 is an apocalyptic number.

28879046 is a deficient number, since it is larger than the sum of its proper divisors (20627914).

28879046 is a wasteful number, since it uses less digits than its factorization.

28879046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062798.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 28879046 is about 5373.9227757756. The cubic root of 28879046 is about 306.8039505584.

The spelling of 28879046 in words is "twenty-eight million, eight hundred seventy-nine thousand, forty-six".

Divisors: 1 2 7 14 2062789 4125578 14439523 28879046