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69000149 is a prime number
BaseRepresentation
bin1000001110011…
…01101111010101
311210211120102002
410013031233111
5120131001044
610502525045
71465330421
oct407155725
9153746362
1069000149
1135a48919
121b136785
13113ab6ba
149241b81
1560ce74e
hex41cdbd5

69000149 has 2 divisors, whose sum is σ = 69000150. Its totient is φ = 69000148.

The previous prime is 69000137. The next prime is 69000179. The reversal of 69000149 is 94100096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46485124 + 22515025 = 6818^2 + 4745^2 .

It is a cyclic number.

It is not a de Polignac number, because 69000149 - 24 = 69000133 is a prime.

It is a super-3 number, since 3×690001493 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69000109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34500074 + 34500075.

It is an arithmetic number, because the mean of its divisors is an integer number (34500075).

Almost surely, 269000149 is an apocalyptic number.

It is an amenable number.

69000149 is a deficient number, since it is larger than the sum of its proper divisors (1).

69000149 is an equidigital number, since it uses as much as digits as its factorization.

69000149 is an odious number, because the sum of its binary digits is odd.

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

The square root of 69000149 is about 8306.6328316593. The cubic root of 69000149 is about 410.1568882035.

It can be divided in two parts, 6900014 and 9, that multiplied together give a palindrome (62100126).

The spelling of 69000149 in words is "sixty-nine million, one hundred forty-nine", and thus it is an aban number.