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29830047 = 3131017573
BaseRepresentation
bin111000111001…
…0101110011111
32002010112010120
41301302232133
530114030142
62543210023
7511360032
oct161625637
962115116
1029830047
1115924835
129ba6913
136245820
143d67019
1529437ec
hex1c72b9f

29830047 has 16 divisors (see below), whose sum is σ = 43262688. Its totient is φ = 18172800.

The previous prime is 29830039. The next prime is 29830049. The reversal of 29830047 is 74003892.

It is not a de Polignac number, because 29830047 - 23 = 29830039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29830049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153 + ... + 7725.

It is an arithmetic number, because the mean of its divisors is an integer number (2703918).

Almost surely, 229830047 is an apocalyptic number.

29830047 is a deficient number, since it is larger than the sum of its proper divisors (13432641).

29830047 is a wasteful number, since it uses less digits than its factorization.

29830047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7690.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 29830047 is about 5461.6890244685. The cubic root of 29830047 is about 310.1353796490.

The spelling of 29830047 in words is "twenty-nine million, eight hundred thirty thousand, forty-seven".

Divisors: 1 3 13 39 101 303 1313 3939 7573 22719 98449 295347 764873 2294619 9943349 29830047