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2028104 = 231319501
BaseRepresentation
bin111101111001001001000
310211001000222
413233021020
51004344404
6111245212
723144561
oct7571110
93731028
102028104
111165821
12819808
13560180
143ab168
152a0dbe
hex1ef248

2028104 has 16 divisors (see below), whose sum is σ = 4095420. Its totient is φ = 936000.

The previous prime is 2028101. The next prime is 2028107. The reversal of 2028104 is 4018202.

It is an interprime number because it is at equal distance from previous prime (2028101) and next prime (2028107).

It can be written as a sum of positive squares in 2 ways, for example, as 1965604 + 62500 = 1402^2 + 250^2 .

It is a super-2 number, since 2×20281042 = 8226411669632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2028101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9647 + ... + 9854.

22028104 is an apocalyptic number.

It is an amenable number.

2028104 is an abundant number, since it is smaller than the sum of its proper divisors (2067316).

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

2028104 is a wasteful number, since it uses less digits than its factorization.

2028104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19520 (or 19516 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 2028104 is about 1424.1151638825. The cubic root of 2028104 is about 126.5795091401.

The spelling of 2028104 in words is "two million, twenty-eight thousand, one hundred four".

Divisors: 1 2 4 8 13 26 52 104 19501 39002 78004 156008 253513 507026 1014052 2028104