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29124385 = 544912973
BaseRepresentation
bin110111100011…
…0011100100001
32000210200010221
41233012130201
524423440020
62520123041
7502360513
oct157063441
960720127
1029124385
1115492644
129906481
136059584
143c21bb3
1528546aa
hex1bc6721

29124385 has 8 divisors (see below), whose sum is σ = 35029800. Its totient is φ = 23245824.

The previous prime is 29124367. The next prime is 29124409. The reversal of 29124385 is 58342192.

It can be written as a sum of positive squares in 4 ways, for example, as 7569 + 29116816 = 87^2 + 5396^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29124385 - 25 = 29124353 is a prime.

It is a super-4 number, since 4×291243854 (a number of 31 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29124385.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4242 + ... + 8731.

It is an arithmetic number, because the mean of its divisors is an integer number (4378725).

Almost surely, 229124385 is an apocalyptic number.

It is an amenable number.

29124385 is a deficient number, since it is larger than the sum of its proper divisors (5905415).

29124385 is a wasteful number, since it uses less digits than its factorization.

29124385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13427.

The product of its digits is 17280, while the sum is 34.

The square root of 29124385 is about 5396.7013072802. The cubic root of 29124385 is about 307.6703090763.

The spelling of 29124385 in words is "twenty-nine million, one hundred twenty-four thousand, three hundred eighty-five".

Divisors: 1 5 449 2245 12973 64865 5824877 29124385