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29007709 = 166317443
BaseRepresentation
bin110111010100…
…1111101011101
32000120202002121
41232221331131
524411221314
62513422541
7501363403
oct156517535
960522077
1029007709
1115412a15
12986aa51
136018433
143bd1473
15282ed24
hex1ba9f5d

29007709 has 4 divisors (see below), whose sum is σ = 29026816. Its totient is φ = 28988604.

The previous prime is 29007703. The next prime is 29007721. The reversal of 29007709 is 90770092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29007709 - 25 = 29007677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29007703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7059 + ... + 10384.

It is an arithmetic number, because the mean of its divisors is an integer number (7256704).

Almost surely, 229007709 is an apocalyptic number.

It is an amenable number.

29007709 is a deficient number, since it is larger than the sum of its proper divisors (19107).

29007709 is a wasteful number, since it uses less digits than its factorization.

29007709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19106.

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 29007709 is about 5385.8805222545. The cubic root of 29007709 is about 307.2589037089.

It can be divided in two parts, 2900 and 7709, that added together give a square (10609 = 1032).

The spelling of 29007709 in words is "twenty-nine million, seven thousand, seven hundred nine".

Divisors: 1 1663 17443 29007709