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28714300 = 22521012843
BaseRepresentation
bin110110110001…
…0010100111100
32000000211121121
41231202110330
524322324200
62503240324
7466032106
oct155422474
960024547
1028714300
111523252a
1297490a4
135c44a14
143b56576
1527c2e1a
hex1b6253c

28714300 has 36 divisors (see below), whose sum is σ = 62949096. Its totient is φ = 11368000.

The previous prime is 28714291. The next prime is 28714303. The reversal of 28714300 is 341782.

28714300 = T429 + T430 + ... + T630.

It is a super-2 number, since 2×287143002 = 1649022048980000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28714303) by changing a digit.

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, 8679 + ... + 11521.

It is an arithmetic number, because the mean of its divisors is an integer number (1748586).

Almost surely, 228714300 is an apocalyptic number.

28714300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28714300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31474548).

28714300 is an abundant number, since it is smaller than the sum of its proper divisors (34234796).

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

28714300 is a wasteful number, since it uses less digits than its factorization.

28714300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958 (or 2951 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 28714300 is about 5358.5725711238. The cubic root of 28714300 is about 306.2194305180.

The spelling of 28714300 in words is "twenty-eight million, seven hundred fourteen thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 101 202 404 505 1010 2020 2525 2843 5050 5686 10100 11372 14215 28430 56860 71075 142150 284300 287143 574286 1148572 1435715 2871430 5742860 7178575 14357150 28714300