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29906589 = 3194167191
BaseRepresentation
bin111001000010…
…1011010011101
32002021102010110
41302011122131
530124002324
62545000233
7512126136
oct162053235
962242113
1029906589
1115977299
12a023079
13627160b
143d86c8d
15295b329
hex1c8569d

29906589 has 32 divisors (see below), whose sum is σ = 43868160. Its totient is φ = 18057600.

The previous prime is 29906579. The next prime is 29906593. The reversal of 29906589 is 98560992.

It is not a de Polignac number, because 29906589 - 25 = 29906557 is a prime.

It is a super-2 number, since 2×299065892 = 1788808131229842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29906579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156484 + ... + 156674.

It is an arithmetic number, because the mean of its divisors is an integer number (1370880).

Almost surely, 229906589 is an apocalyptic number.

It is an amenable number.

29906589 is a deficient number, since it is larger than the sum of its proper divisors (13961571).

29906589 is a wasteful number, since it uses less digits than its factorization.

29906589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 29906589 is about 5468.6917082608. The cubic root of 29906589 is about 310.4004156310.

The spelling of 29906589 in words is "twenty-nine million, nine hundred six thousand, five hundred eighty-nine".

Divisors: 1 3 19 41 57 67 123 191 201 573 779 1273 2337 2747 3629 3819 7831 8241 10887 12797 23493 38391 52193 148789 156579 243143 446367 524677 729429 1574031 9968863 29906589