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29745029 = 137217117
BaseRepresentation
bin111000101110…
…1111110000101
32001222012111202
41301131332011
530103320104
62541312245
7510554126
oct161357605
961865452
1029745029
1115876976
129b65685
136215c12
143d4404d
15292851e
hex1c5df85

29745029 has 4 divisors (see below), whose sum is σ = 29962284. Its totient is φ = 29527776.

The previous prime is 29745017. The next prime is 29745041. The reversal of 29745029 is 92054792.

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

It is an interprime number because it is at equal distance from previous prime (29745017) and next prime (29745041).

It can be written as a sum of positive squares in 2 ways, for example, as 10252804 + 19492225 = 3202^2 + 4415^2 .

It is a cyclic number.

It is not a de Polignac number, because 29745029 - 220 = 28696453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29744983 and 29745001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29745059) 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, 108422 + ... + 108695.

It is an arithmetic number, because the mean of its divisors is an integer number (7490571).

Almost surely, 229745029 is an apocalyptic number.

It is an amenable number.

29745029 is a deficient number, since it is larger than the sum of its proper divisors (217255).

29745029 is a wasteful number, since it uses less digits than its factorization.

29745029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217254.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 29745029 is about 5453.9003474578. The cubic root of 29745029 is about 309.8404624818.

The spelling of 29745029 in words is "twenty-nine million, seven hundred forty-five thousand, twenty-nine".

Divisors: 1 137 217117 29745029