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28657050 = 2352191047
BaseRepresentation
bin110110101010…
…0010110011010
31222220221002020
41231110112122
524314011200
62502115310
7465403152
oct155242632
958827066
1028657050
11151a3514
12971bb36
135c24946
143b3d762
1527b0ea0
hex1b5459a

28657050 has 24 divisors (see below), whose sum is σ = 71069856. Its totient is φ = 7641840.

The previous prime is 28657037. The next prime is 28657063. The reversal of 28657050 is 5075682.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28657037) and next prime (28657063).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95374 + ... + 95673.

It is an arithmetic number, because the mean of its divisors is an integer number (2961244).

Almost surely, 228657050 is an apocalyptic number.

28657050 is an abundant number, since it is smaller than the sum of its proper divisors (42412806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28657050 is a wasteful number, since it uses less digits than its factorization.

28657050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191062 (or 191057 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 28657050 is about 5353.2279981335. The cubic root of 28657050 is about 306.0157837132.

The spelling of 28657050 in words is "twenty-eight million, six hundred fifty-seven thousand, fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 191047 382094 573141 955235 1146282 1910470 2865705 4776175 5731410 9552350 14328525 28657050