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2728000 = 26531131
BaseRepresentation
bin1010011010000001000000
312010121010001
422122001000
51144244000
6134245344
732121232
oct12320100
95117101
102728000
1115a3650
12ab6854
13746902
14510252
1538d46a
hex29a040

2728000 has 112 divisors (see below), whose sum is σ = 7607808. Its totient is φ = 960000.

The previous prime is 2727997. The next prime is 2728013. The reversal of 2728000 is 8272.

2728000 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87985 + ... + 88015.

22728000 is an apocalyptic number.

2728000 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 2728000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3803904).

2728000 is an abundant number, since it is smaller than the sum of its proper divisors (4879808).

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

2728000 is a wasteful number, since it uses less digits than its factorization.

2728000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 2728000 is about 1651.6658257650. The cubic root of 2728000 is about 139.7273605564.

The spelling of 2728000 in words is "two million, seven hundred twenty-eight thousand".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 31 32 40 44 50 55 62 64 80 88 100 110 124 125 155 160 176 200 220 248 250 275 310 320 341 352 400 440 496 500 550 620 682 704 775 800 880 992 1000 1100 1240 1364 1375 1550 1600 1705 1760 1984 2000 2200 2480 2728 2750 3100 3410 3520 3875 4000 4400 4960 5456 5500 6200 6820 7750 8000 8525 8800 9920 10912 11000 12400 13640 15500 17050 17600 21824 22000 24800 27280 31000 34100 42625 44000 49600 54560 62000 68200 85250 88000 109120 124000 136400 170500 248000 272800 341000 545600 682000 1364000 2728000