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1428300 = 223352232
BaseRepresentation
bin101011100101101001100
32200120021000
411130231030
5331201200
650340300
715066066
oct5345514
92616230
101428300
11896115
1258a690
133b0163
14292736
151d3300
hex15cb4c

1428300 has 108 divisors (see below), whose sum is σ = 4800040. Its totient is φ = 364320.

The previous prime is 1428281. The next prime is 1428359. The reversal of 1428300 is 38241.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 62089 + ... + 62111.

21428300 is an apocalyptic number.

1428300 is a gapful number since it is divisible by the number (10) 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 1428300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2400020).

1428300 is an abundant number, since it is smaller than the sum of its proper divisors (3371740).

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

1428300 is a wasteful number, since it uses less digits than its factorization.

1428300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1428300 is about 1195.1150572225. The cubic root of 1428300 is about 112.6176546893.

Multiplying 1428300 by its product of nonzero digits (192), we get a square (274233600 = 165602).

It can be divided in two parts, 1428 and 300, that added together give a cube (1728 = 123).

The spelling of 1428300 in words is "one million, four hundred twenty-eight thousand, three hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 23 25 27 30 36 45 46 50 54 60 69 75 90 92 100 108 115 135 138 150 180 207 225 230 270 276 300 345 414 450 460 529 540 575 621 675 690 828 900 1035 1058 1150 1242 1350 1380 1587 1725 2070 2116 2300 2484 2645 2700 3105 3174 3450 4140 4761 5175 5290 6210 6348 6900 7935 9522 10350 10580 12420 13225 14283 15525 15870 19044 20700 23805 26450 28566 31050 31740 39675 47610 52900 57132 62100 71415 79350 95220 119025 142830 158700 238050 285660 357075 476100 714150 1428300