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29903801 = 411275743
BaseRepresentation
bin111001000010…
…0101110111001
32002021021022012
41302010232321
530123410201
62544535305
7512115044
oct162045671
962237265
1029903801
1115975194
12a021535
136270275
143d85c5b
15295a5bb
hex1c84bb9

29903801 has 8 divisors (see below), whose sum is σ = 30879744. Its totient is φ = 28939680.

The previous prime is 29903779. The next prime is 29903831. The reversal of 29903801 is 10830992.

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 29903801 - 210 = 29902777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29903831) 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 7 ways as a sum of consecutive naturals, for example, 2336 + ... + 8078.

It is an arithmetic number, because the mean of its divisors is an integer number (3859968).

Almost surely, 229903801 is an apocalyptic number.

It is an amenable number.

29903801 is a deficient number, since it is larger than the sum of its proper divisors (975943).

29903801 is a wasteful number, since it uses less digits than its factorization.

29903801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 29903801 is about 5468.4367967455. The cubic root of 29903801 is about 310.3907697828.

The spelling of 29903801 in words is "twenty-nine million, nine hundred three thousand, eight hundred one".

Divisors: 1 41 127 5207 5743 235463 729361 29903801