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2195069 = 3137013
BaseRepresentation
bin1000010111111001111101
311010112001212
420113321331
51030220234
6115014205
724441422
oct10277175
94115055
102195069
11126a208
1289a365
135bb176
14411d49
152d55ce
hex217e7d

2195069 has 4 divisors (see below), whose sum is σ = 2202396. Its totient is φ = 2187744.

The previous prime is 2195059. The next prime is 2195071. The reversal of 2195069 is 9605912.

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

It can be written as a sum of positive squares in 2 ways, for example, as 743044 + 1452025 = 862^2 + 1205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2195069 is a prime.

It is a super-2 number, since 2×21950692 = 9636655829522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3194 + ... + 3819.

It is an arithmetic number, because the mean of its divisors is an integer number (550599).

22195069 is an apocalyptic number.

It is an amenable number.

2195069 is a deficient number, since it is larger than the sum of its proper divisors (7327).

2195069 is an equidigital number, since it uses as much as digits as its factorization.

2195069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7326.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 2195069 is about 1481.5765251920. The cubic root of 2195069 is about 129.9619020511.

It can be divided in two parts, 219 and 5069, that multiplied together give a palindrome (1110111).

The spelling of 2195069 in words is "two million, one hundred ninety-five thousand, sixty-nine".

Divisors: 1 313 7013 2195069