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2128034 = 21064017
BaseRepresentation
bin1000000111100010100010
311000010010002
420013202202
51021044114
6113340002
724042116
oct10074242
94003102
102128034
111223907
12867602
135967bc
143d5746
152c07de
hex2078a2

2128034 has 4 divisors (see below), whose sum is σ = 3192054. Its totient is φ = 1064016.

The previous prime is 2128031. The next prime is 2128039. The reversal of 2128034 is 4308212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2093809 + 34225 = 1447^2 + 185^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2127997 and 2128015.

It is not an unprimeable number, because it can be changed into a prime (2128031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532007 + ... + 532010.

22128034 is an apocalyptic number.

2128034 is a deficient number, since it is larger than the sum of its proper divisors (1064020).

2128034 is a wasteful number, since it uses less digits than its factorization.

2128034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064019.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2128034 is about 1458.7782559389. The cubic root of 2128034 is about 128.6252368545.

The spelling of 2128034 in words is "two million, one hundred twenty-eight thousand, thirty-four".

Divisors: 1 2 1064017 2128034