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29905051 = 117733517
BaseRepresentation
bin111001000010…
…1000010011011
32002021100000111
41302011002123
530123430201
62544545151
7512121511
oct162050233
962240014
1029905051
1115976120
12a0221b7
1362709c7
143d864b1
15295ab51
hex1c8509b

29905051 has 8 divisors (see below), whose sum is σ = 32675184. Its totient is φ = 27143520.

The previous prime is 29905039. The next prime is 29905087. The reversal of 29905051 is 15050992.

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 29905051 - 27 = 29904923 is a prime.

It is a super-3 number, since 3×299050513 (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29905151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6745 + ... + 10261.

It is an arithmetic number, because the mean of its divisors is an integer number (4084398).

Almost surely, 229905051 is an apocalyptic number.

29905051 is a deficient number, since it is larger than the sum of its proper divisors (2770133).

29905051 is a wasteful number, since it uses less digits than its factorization.

29905051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 29905051 is about 5468.5510878111. The cubic root of 29905051 is about 310.3950945737.

The spelling of 29905051 in words is "twenty-nine million, nine hundred five thousand, fifty-one".

Divisors: 1 11 773 3517 8503 38687 2718641 29905051