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29428149 = 39809383
BaseRepresentation
bin111000001000…
…0100110110101
32001101002211110
41300100212311
530013200044
62530425233
7505064232
oct160204665
961332743
1029428149
111567a893
129a32219
13613490a
143ca0789
1528b46b9
hex1c109b5

29428149 has 4 divisors (see below), whose sum is σ = 39237536. Its totient is φ = 19618764.

The previous prime is 29428141. The next prime is 29428153. The reversal of 29428149 is 94182492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 29428149 - 23 = 29428141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29428141) 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 3 ways as a sum of consecutive naturals, for example, 4904689 + ... + 4904694.

It is an arithmetic number, because the mean of its divisors is an integer number (9809384).

Almost surely, 229428149 is an apocalyptic number.

It is an amenable number.

29428149 is a deficient number, since it is larger than the sum of its proper divisors (9809387).

29428149 is an equidigital number, since it uses as much as digits as its factorization.

29428149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9809386.

The product of its digits is 41472, while the sum is 39.

The square root of 29428149 is about 5424.7717924351. The cubic root of 29428149 is about 308.7362670437.

The spelling of 29428149 in words is "twenty-nine million, four hundred twenty-eight thousand, one hundred forty-nine".

Divisors: 1 3 9809383 29428149