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2169029 is a prime number
BaseRepresentation
bin1000010001100011000101
311002012100102
420101203011
51023402104
6114253445
724302462
oct10214305
94065312
102169029
111251695
12887285
135ac365
14406669
152cca1e
hex2118c5

2169029 has 2 divisors, whose sum is σ = 2169030. Its totient is φ = 2169028.

The previous prime is 2169007. The next prime is 2169031. The reversal of 2169029 is 9209612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1716100 + 452929 = 1310^2 + 673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2169029 is a prime.

It is a super-3 number, since 3×21690293 = 30613806333838234167, which contains 333 as substring.

Together with 2169031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2168992 and 2169010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2169529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1084514 + 1084515.

It is an arithmetic number, because the mean of its divisors is an integer number (1084515).

22169029 is an apocalyptic number.

It is an amenable number.

2169029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2169029 is an equidigital number, since it uses as much as digits as its factorization.

2169029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 2169029 is about 1472.7623705133. The cubic root of 2169029 is about 129.4459457475.

The spelling of 2169029 in words is "two million, one hundred sixty-nine thousand, twenty-nine".