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28474486 = 216218783
BaseRepresentation
bin110110010011…
…1110001110110
31222120122122121
41230213301312
524242140421
62454150154
7464012665
oct154476166
958518577
1028474486
1115089337
12965235a
135b8c811
143ad2ddc
152776d41
hex1b27c76

28474486 has 8 divisors (see below), whose sum is σ = 42742944. Its totient is φ = 14226840.

The previous prime is 28474477. The next prime is 28474487. The reversal of 28474486 is 68447482.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28474487) 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, 1150 + ... + 7633.

It is an arithmetic number, because the mean of its divisors is an integer number (5342868).

Almost surely, 228474486 is an apocalyptic number.

28474486 is a deficient number, since it is larger than the sum of its proper divisors (14268458).

28474486 is a wasteful number, since it uses less digits than its factorization.

28474486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10406.

The product of its digits is 344064, while the sum is 43.

The square root of 28474486 is about 5336.1489859261. The cubic root of 28474486 is about 305.3645591506.

The spelling of 28474486 in words is "twenty-eight million, four hundred seventy-four thousand, four hundred eighty-six".

Divisors: 1 2 1621 3242 8783 17566 14237243 28474486