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2728088 = 2311291069
BaseRepresentation
bin1010011010000010011000
312010121020022
422122002120
51144244323
6134250012
732121416
oct12320230
95117208
102728088
1115a3720
12ab6908
1374696c
145102b6
1538d4c8
hex29a098

2728088 has 32 divisors (see below), whose sum is σ = 5778000. Its totient is φ = 1196160.

The previous prime is 2728079. The next prime is 2728097. The reversal of 2728088 is 8808272.

It is an interprime number because it is at equal distance from previous prime (2728079) and next prime (2728097).

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2018 + ... + 3086.

22728088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2728088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2889000).

2728088 is an abundant number, since it is smaller than the sum of its proper divisors (3049912).

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

2728088 is a wasteful number, since it uses less digits than its factorization.

2728088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 2728088 is about 1651.6924653216. The cubic root of 2728088 is about 139.7288629849.

The spelling of 2728088 in words is "two million, seven hundred twenty-eight thousand, eighty-eight".

Divisors: 1 2 4 8 11 22 29 44 58 88 116 232 319 638 1069 1276 2138 2552 4276 8552 11759 23518 31001 47036 62002 94072 124004 248008 341011 682022 1364044 2728088