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2136069 = 321318257
BaseRepresentation
bin1000001001100000000101
311000112010200
420021200011
51021323234
6113441113
724104415
oct10114005
94015120
102136069
111229951
12870199
1359a360
143d8645
152c2d99
hex209805

2136069 has 12 divisors (see below), whose sum is σ = 3322956. Its totient is φ = 1314432.

The previous prime is 2136061. The next prime is 2136077. The reversal of 2136069 is 9606312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2136061) and next prime (2136077).

It can be written as a sum of positive squares in 2 ways, for example, as 471969 + 1664100 = 687^2 + 1290^2 .

It is not a de Polignac number, because 2136069 - 23 = 2136061 is a prime.

It is a super-2 number, since 2×21360692 = 9125581545522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9012 + ... + 9245.

It is an arithmetic number, because the mean of its divisors is an integer number (276913).

22136069 is an apocalyptic number.

It is an amenable number.

2136069 is a deficient number, since it is larger than the sum of its proper divisors (1186887).

2136069 is a wasteful number, since it uses less digits than its factorization.

2136069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18276 (or 18273 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2136069 is about 1461.5296781113. The cubic root of 2136069 is about 128.7869206335.

The spelling of 2136069 in words is "two million, one hundred thirty-six thousand, sixty-nine".

Divisors: 1 3 9 13 39 117 18257 54771 164313 237341 712023 2136069